Are the games we buy the games we want?

I have always argued that subscription numbers of a MMORPG six months after release do allow us to say something about the quality of a game. If people are still playing then, they must be having fun. It is very hard to argue that they got lured into the game by false advertising and haven't found out about it half a year later. But that is subscription MMORPGs, a dying species. If we look at single-player games, it is a lot easier to imagine that people bought a game they ended up not wanting,

World of Warkraft...