I agree, but this sounds even worse than that. This sounds like if you had to rely on a bunch of random internet strangers to log in and out taking turns reading it to you. Ew.megaman24681012 said:here's a different scenario, I would have a hard time appreciating a book if I had to read it to someone!
Seriously though, I don't think this will ever truly happen. Different types of games come into the field and things change, but you never lose any genres. We had early consoles like atari and colecovision and it was all platforming and space shooters, then you started to see more puzzles after tetris and then you started seeing fps after doom and bigger better rts after warcraft and whatnot. Now we have a huge overflow of facebook games because zynga's making a mint with farmville. But nothing ever actually dies off. You just get more styles.
This might just be a new genre. Sure I think it might be hard to find a truly single player game for a while if it becomes popular as every company jumps on the bandwagon, but eventually everything runs its course and things even out again. Besides there will always be indie games picking up the beloved genres that are being overshadowed.