Don’t get me wrong, generally I prefer the social of gaming with other people as well, but some of us simply don’t have that luxury a lot of the time. So you learn to adapt, or you don’t play games. That simple.
And I assure you, having done both extensively, playing an RPG solo using GME and writing a story are not the same 🙂
I don’t agree with your assessment of computer games though. Modding tools are a wonderful thing.