This is what I was thinking at first but honestly the used game thing doesn't kill it for me. Now if the next gen systems ONLY played digital games and they were still $50-$60 on release then yes I would stick with my PS3/360/Wii.
I know alot of people are complaning about this but you know that alot of them would still buy it anyway. I mean it's already happening this gen. All of Sony's first party games for the last two years have required online passes for the multiplayer and the same thing can be said about EA's games. Yet this has not slowed down sales of Uncharted, Madden, Battlefield, etc. I personally buy most of my games new but I definitely enjoy buying games used at yard sales and flea markets too. I may not like it if Microsoft and Sony did this with all their games(especially since I play alot of online multiplayer) but it's something that people would just have to get used to. But it's not going to kill off console gaming over night and I also doubt it will send waves of people flocking to the WiiU.