This has been an awesome bunch of replies - please continue. 
I suspect I've learned what I wanted to learn. As stupid as it sounds, I wanted to know if I was going to be the only kid who wasn't in the club if I didn't use the DDi. I suspect my players will want to use it...but I do like books.
Some particular responses:
[MENTION=807]fba827[/MENTION]: I too spend too much time with a computer already. I also have far more time to read gaming books than I do sitting at the table actually playing.
[MENTION=19675]Dannyalcatraz[/MENTION]: This was my exact feeling about the money also. The only counterpoint that I think is fair to offer is that, though I too have my original AD&D books, I haven't looked at one in 25 years.
[MENTION=16212]wedgeski[/MENTION]: Downloadable art from a gallery is not nearly as evocative to me as art while reading a book. I happen to think that most of the art in 4e provides a feel for the game that distinguishes it well from 3e.
[MENTION=6679380]wlmartin[/MENTION]: I think you and I see eye-to-eye on a number of things, based on other posts of yours that I've read.
[MENTION=22424]delericho[/MENTION]: You make a lot of valid points. Thanks for that. I decided to check out some stuff. My 3.5 collection (not counting Dragonlance, Kalamar, or Pathfinder) was 95 books. In our last campaign, we regularly used 38. But I had read all of them cover to cover. My present list for 4e books is 38 total (I excluded the new DM kit and the Advanced Players Guide or whatever its called).

I suspect I've learned what I wanted to learn. As stupid as it sounds, I wanted to know if I was going to be the only kid who wasn't in the club if I didn't use the DDi. I suspect my players will want to use it...but I do like books.
Some particular responses:
[MENTION=807]fba827[/MENTION]: I too spend too much time with a computer already. I also have far more time to read gaming books than I do sitting at the table actually playing.
[MENTION=19675]Dannyalcatraz[/MENTION]: This was my exact feeling about the money also. The only counterpoint that I think is fair to offer is that, though I too have my original AD&D books, I haven't looked at one in 25 years.
[MENTION=16212]wedgeski[/MENTION]: Downloadable art from a gallery is not nearly as evocative to me as art while reading a book. I happen to think that most of the art in 4e provides a feel for the game that distinguishes it well from 3e.
[MENTION=6679380]wlmartin[/MENTION]: I think you and I see eye-to-eye on a number of things, based on other posts of yours that I've read.
[MENTION=22424]delericho[/MENTION]: You make a lot of valid points. Thanks for that. I decided to check out some stuff. My 3.5 collection (not counting Dragonlance, Kalamar, or Pathfinder) was 95 books. In our last campaign, we regularly used 38. But I had read all of them cover to cover. My present list for 4e books is 38 total (I excluded the new DM kit and the Advanced Players Guide or whatever its called).