1. Portability. Whether I want to read my magazines on the john or not, a computer/laptop is *not* as portable as a magazine. I don't care what the gear-heads say, (and back in the 80's & 90's, I used to be one, but I guess I'm just getting too old to keep buying more crap just because its 'new' and 'digital') reading a PDF on a computer screen sucks, sucks SUCKS! It will *NEVER* replace having a good old printed magazine to read whenever, wherever I want to, whether that's on the throne, in my recliner, in bed, on a train/plane/automobile or even standing at the mailbox with the plastic cover already off, flipping through the articles even as I start to wander back to the house from the street. I *can't* read a PDF anywhere but at my computer. (Look how many people have said that even though they work on computers for a living, they don't want to read magazine-style content on a computer.) I'm sorry Chris, but digital might be cheaper, might even be more flexible in delivery and content, but it just *can't* replace magazines.
2. Subscription elapse. I have subscribed, let expire and resubscribed to both Dungeon and Dragon several times over the last 25+ years. Every time I have let the subscription expire, (for a variety of reasons) I still have the magazines I bought. They haven't lost their utility for me. I still thumb through them on a regular basis, for ideas and just for the simple pleasure of reading about D&D. When my current subscription expires when WotC kills the magazine, I will still have my copies. They are mine, to do with them as I please, and unless I have a life-changing experience so radical that I become a different person, I will have them until the day they bury me and I pass them on to my kids, (and maybe grandkids.)
Given that I understand the NDA's that y'all are operating under, (and oddly enough, unlike many other here I have no problem with. You have been gagged officially, and I can't find fault with your inability to provide information we feel entitled to) I don't expect you to be able to answer this question, so I put it out there for your consideration: When a customer subscribes to the DI, once their subscription runs out, (for whatever reason) will they still have access to the material that they *did* pay for throughout their subscription? If I was told, once I had paid my subscription, that once it ran out I had to return all the magazines I had already paid for, you would have seen one ticked off gamer. You will see some ticked off gamers if you do that to the DI, and I hazard a guess that the DI will fail if that's the business model. I might be completely off-base with this issue, but I believe its a legitimate concern.
3. DRM (Digital Rights Management) Will DI content be managed to the point that it can't be copied, moved or archived on CD? If my computer had a complete melt-down and I lost all of my data, would I be able to retrieve it through an archival service with WotC? I realize that if my house burned down and I lost all of my magazines in the fire, I couldn't expect the publisher to replace them, but since digital is being touted as this wonderful new way of delivering content, could I expect that with my digital subscription? (If this is true, then I will admit that might be a selling point for me for the DI that mitigates some of the negatives I associate it with.) The way that the RIAA went after Napster and other file-sharing services and how pycho the music industry has gotten over DRM, I think that this is a legitimate concern. (And again I am not expecting you to be able to non-NDA this. It's just an issue.)
4. Printing. This one has me torqued. I'm sorry, but I willingly pay a subscription to a magazine and I get a nice, colorful, glossy and bound physical thing in my hand. If I subscribe to the DI, I get 'virtual' data that exists only as electrons and a series of 1's and 0's on my hard-drive, (or yours, depending on the DRM issue above.) If I want to use it away from my computer, (see issue #1 above) then I have to print it on my printer with my paper. I pay for it once, then I pay for it again when I print it. Not only does it cost ME paper and ME the cost of color printing, (which is outrageous anyway) but I don't get it glossy, sharp or even bound! A stack of printer-paper, (which likely as not is recycled and not of sterling quality) printed on one side with blurry pictures and now I have to somehow secure it. Let me tell you, as a consumer and customer, this SUCKS.
I realize that several WotC posters have commented on a 'best of..' type compiliation that will be printed and I can have my print that way. Unfortunately, somebody else decides what is "best", not me. I might not agree with that. I want to be able to decide what is best from the lot, not depend on somebody else's opinion. If it made it into the magazine in the first place, it should already be the best from amongst all the submitted material, right?
5. Accessability. When I didn't have a subscription to either magazine, many times I would pick one up anyway off the magazine rack. I would flip through them, check it out and decide to buy. If I didn't like next month's, I wouldn't get it. Will the DI have the same flexibility? I saw in a response on the ENWorld boards that customers would have the ability to look before they purchased, but I couldn't tell if that meant before they bought a month's long subscription or if it could a month by month purchase. I did see that it wasn't machine-specific, i.e. I could access my subscription from another computer. This is a good thing.
6. (finally) Bundling. If the DI includes games that I have no use for but I still have to pay a full subscription to get what I do want to see, you won't see me paying for it. On the magazine rack I see (or at least for a few more months will see) Dungeon, Dragon and then magazines for the other games put out by WotC that I couldn't have less interest in. I won't start insulting players or designers of other games with my reasons for why, but I play D&D/RPG's and I am NOT interested in paying any sort of money to see them combined with other games that I despise in many ways. I am sure that many of the players of those 'other' games feel the same way about my D&D and wouldn't want to pay to get access to their content mixed in with mine. If Wizards put out a general magazine with content for *all* of their games, I don't think it would have the success of their specialty mags.