Actually, in my experiecne thats exactly what they do. I don't have to read the supplemental material at all to run the adventure.
Okay. But do you think they are actually done
well for this purpose? I'm far from one of the nay-sayers, in that I generally enjoy the WotC and Paizo-published adventures that I've read. But I wouldn't say that they are organized well for DMs.
I think its so folks can have a full flavored and expanded campaign instead of a series of strung along adventures that loosely connect. Think of it like watching a series (AP) instead of films (modules).
Sure, yeah. But again I ask: Can't it be both? Can't they be broken down into bite-sized chunks AND add up to a big story? Are we sure that they can't be better? And by better, I mean A LOT better.
By easy, I assume, most folks mean they can go page by page and easily follow the adventure in little prep and running time.
Well, I guess the general idea is
less prep-time than we currently need to do. Obviously, some are better than others.
There isnt much slack/setting/variance to account for. It's an odd complaint as folks often say APs are too railroady, but then complain when they are not linear enough.
Does anyone do that though? (I mean, I guess
someone probably does, there are ALL KINDS here). I think the complaint usually boils down to: Have the adventure give the players meaningful choices. Don't assume that the PCs will do the seemingly obvious thing. Give at least a little guidance for when they don't bite the hook. (IMO this is actually
easiest when you give two or three possible directions at any given fork-in-the-road. If there's forks, you can't call it much of a railroad, and if you give multiple directions, you're less likely to have the players say "nope, we're going THIS way" and leave the DM stuck if the adventure only goes THAT way.
PCs might not take the most obvious route, but if they're not purposefully trying to cause their DM problems (and most are not), then a couple of alternate choices will usually do. They'll pick one of them.
Personally, I don't like sandboxes. But I'd LOVE for every adventure to make sure that there's more than one way to go whenever it presents a possible fork.