I support all ideas expressed here.
Although, I'd love to own my own house, and what would also be great, a item vault.
They could create a "big hotel" on the city, which would primaly only have the reception and a lobby/bar, and if the character would feel like going to his own room he could ask a NPC standing besides the stairs. So it would work just like the bank. I mean, let's say:
*Talks with the NPC*
*NPC says*Do you want to check in now?
1.Yes
2.No
3.Visit somebody's room
*Answers yes*
*PC teleported to his room*
If the PC choses 3. the game could offer a list of room owners present at the time, they'd pick one, then they'd be teleported to a area(tiny room, with one way out and the room's door) outside the PC's room. Which would be locked, and only opened from a switch inside.
There would be a real life daily tax. Let's say, 100 fangs (DMs decide)
There could be larger rooms, smallers, the taxes would vary widely.
I also dream about a item vault on the server, but that's for the future, for now the rooms would be just gre-a-t.
Imaigne, yourself sponsoring a meeting or small party in your own room.
The "big hotel" could also own different areas(Ball room for example) nothing epicly big, otherwise it'd add too much load to the server.