Its strange often. When you work in the games industry you play a lot of games. I mean a LOT. I think I played like 15.000 games in my life. Yes I mean different ones. The effect on this is that most games I play have similar mechanics or features than a game I played before.
This removes an important element of games: surprise & excitement. "This is cool" is missing often which makes me bored about most games. This isn't bad as I can spot the special things inside a game which are great very fast and easy. Generally it takes like 20 minutes and I can tell you how a game is constructed and how it will progress along. That's usually when I stop playing it.
Rarely a game* will bind me for hours, the most recent one was Dishonored. (*I mean single player games, MMO's are different). I started playing Tomb Raider and while it is an excellent game I was bored within minutes. I knew too many things they were doing including their quick time moments (did I tell you I hate the qt moment thingy which seem to be popular?. Don't get me wrong, Tomb Raider is an excellent game, but not for someone who played as much as I did.
So I am on a mission to find that one game which keeps me occupied for hours. Have suggestions? Let me know.
The whole thing is made worse with the fact that I love online games. As soon as I play a single player game I am missing people. Humans - which I can talk to, play with or against. This is so powerful that most single player games have a hard time to compete. I went as far as saying "Single player games will be niche in 5-10 years" in a talk back 2006 I think. Was I right? We'll see.
Btw people suggested Animal Crossing 3DS which I can really recommend to ANY age, in fact most people who I know love that game are beyond 30. So don't get fooled. Play that little gem! My 3DS was stolen by my daughter so I can't play right now :(