>>20535778Single player games are all well and good, but at a certain point they get boring. Multiplayer games waste just as much time as MMOs without having a rich world filled with story to explore. Sure something like Snake Eater is significantly more interesting than WoW, but there aren't enough Snake Eaters out there to fill in the free time that an MMO can. Even if there were that many quality single player games, it would cost a small fortune to reach the same entertainment value that an expansion and $15 a month can fill.
Personally, I flop down at my desk and fire up a game after work to fill in the free time before bed if I don't have anyone to hang out with that evening. Doing some quests or dungeons in WoW is low cost, low maintenance entertainment.