Hmm, I usually abandon a game almost at the start if I don't like it (PS:T and Arcanum). I play very few games, and generally prefer to finish them, before starting a new game. But I don't seem to be able to finish NWN2-MotB right now. Every time I manage to get those 2 precious hours to do my own thing before going to work I end up modding instead of playing.

Time's just so hard to come by. I don't connect it to the quality of the game though. I am actually interested in MotB, and what's going to happen next. I guess, I just want to get that kind of lovely atmoshpere when nothing was pressing, all time was my own to play and enjoy it fully.
As for buying games, I only buy a game if I know I will love it, after looking at the reviews from the folks I know, and while lots of people ridicule my rigid views on what I will NOT buy
ever, it generally works okay for me.
Possibly, because I play so few games, I still see innovations and cool stuff. For example, JE twists surprised and excited me.