Of course, people will stop thinking to what happens to the money as soon as it leaves their pockets I personally don't buy used games, but I also don't buy full price for myself for obvious reasons: I have to make choices in life and don't really like to pay 50€ for today's shallow games. UT3 CE costed around $95 to someone that had half of the average income of US, Germany or Sweden. Still, give me an UT every year and I'll buy copies of the CE for me and probably othersThe difference is that I'm an informed customer whereas a lot of people are not with regards to what the difference is when buying new or used beside the difference in price point. A lot of people will buy games used not thinking twice about what happens with that money. It may not be a net loss or gain for the developers in the big picture, or worse or better for my wallet, but in a way I'm helping the industry I work in.
I can't stand very intrusive software but can see why they use strong DRM to protect their work. There I even have some solidarity and I'm far from hating them, but I'll not going to buy such a game either. Still, about used it's very different. Seen from their side is still loss of profit, but more than ever they must not forget that they are targeting people that want to pay for games. Just focus on gameplay, don't waste money on multimillion $US cutscenes and make games more affordable.
Honestly, when I consider who and how much has to be paid to make an expensive movie that is still profitable with 8€ cinema tickets, I don't see how digitally distributed games can't be at 30 or 35€