I'm not sure how I've changed, but looking back I probably am less forgiving of flaws than I used to be. Having said that I'll still play games with bugs and other flaws if I'm enjoying them (as in I rarely find game flaws that prevent me having fun).
In fact, I think that my becomming more critical of games and forming stronger opinions is more to do with me playing and having access to a larger library and wider variety of games than I did before. I think it's a case of natural progression that when you've played a large number of games you have already experienced a number of quality titles, games with flawed mechanics or bugs are less enjoyable.
However, I will rarely put a game away even if I find flaws. If I've spent money on it, then I try my best to get something from the game. Maybe it's because I'm mainly from a PC gaming background where bugs have been the norm for many years that I'm fairly accepting of flaws and bugs.
