

The game I most recently bought is Trackmania United Forever, still $15 on sale even though it came out in 2008. I suppose my purchase of that is less though than of what they get from a user playing their new subscription based (!) racing game for a year.
I think most big budget multiplayer games last 2-5 years, but there are some (among us, fall guys, lethal company, etc) that pass pretty quickly, and some that are just bad enough that they are basically outdated already when they come out.