Asheron's Call - released in ~2000, open-world easily obtainable housing of various sizes. I wasn't even max level, had no idea what I was doing since it was my first mmo and I still got the largest sized house.

SWG - your own FREE space yacht and easily obtainable open-world houses of various sizes as well as player cities. Only certain decorations were expensive.

SWTOR - your own FREE space ship.

Wildstar (coming spring 2014) - your own plot of land starting at level ~14 which you can expand and grow.

I could go on..