Sometimes I think about playing another MMO, but then I think

[Bonoki]

I will never understand why someone would continue to sub so they can use a house in the game they don't enjoy. If you don't enjoy the game who cares about the house? I certainly wouldn't.

Because they do enjoy the game. There's a difference between taking a break and quitting. If you take a break with the intent to return, your house will be gone when you get back. The house isn't exactly easy to get back so yes, a lot of people care towards that "who cares?".