Ive found the same with games over most of my adult life. Which makes me appreciate when i find a game with a lot of replay value.
Its like now, among other new TV shows im currently re-watching Battlestar Galactica which i havnt seen for over a couple of years, i loved it back in the day, really great story etc.
Just because there's no good games these days. Im playing Planetside 2 here and there as its the only game that holds my interest.
I cant stand offline games. I quit gaming when i was 16 (now 31) because i got so bored of it, and then online multiplayer games started coming out which brought me back into gaming.