Vestin: If you buy a game with DRM, this doesn't mean that you wanted to buy a game with DRM. Most likely - you wanted to buy a game and it had DRM. You caved in and bought it. There's not a lot of people who would not buy it only because of DRM but a lot of them would appreciate its lack and almost everyone, at the very least, won't mind. Since the product ends up bought, there is no economical reason to change the distribution model.
You're only considering the two extremes: people who will buy a game regardless of DRM (no matter how much they may complain), and those who will pass even on games they're otherwise quite interested in due to DRM (and while this group includes myself, i recognize that it's a fairly small group). However, there's a large middle ground between the extremes, people who aren't closely following a particular game, but may take notice and buy it if it looks good and seems like a good value. For these people, who can basically either take or leave any particular game, and are often considering more games than they have money or time for, nearly every aspect of the game, including DRM, will factor into whether they buy the game or take a pass in favor of another game.
This is basically the same as with any other type of product: there are people who are certain to buy your product, there are people who will never buy your product, and there are people who might buy your product (depending on the details of your product). And how sales fare with this latter group can easily mean the difference between a highly successful product, a slightly successful product, or an unsuccessful product.
Vestin: That's why I mentioned boycotts, since voting with your wallet would seem to be the obvious answer. On the other hand - we don't want to leave the company without any money, because there would be no one to learn anything if they went down and we DO want to play the games... so we buy. And even if some of us don't buy, it's usually blamed on piracy and not the anti-DRM stance.
You're again making the mistake of thinking this is about principles- it's not. It's purely about people acting out of self-interest in their purchasing decisions. In other words, buying products that they think are worth the asking price, and not buying products that they don't think are worth the asking price (or which aren't perceived as being as good a value as a competing product). In short, it's just basic microeconomics at work.
However, we seem to have veered away from the original topic of discussion and into an area of conversation that holds little interest for me these days. So I probably won't be partaking any further.