I feel like i'm having just as much fun playing games these days as ever, if not more since I understand way more now than I ever did before. Though back in the day 80's/90's I played a wider variety of games. Now I pretty much only play RPGs (of various types) and 4x games.
Also I am one of those players that feel that the move to 3D killed many game series that I used to like (mario, zelda, metroid, etc).