The idea of a greenhouse might work. You pay a one-time fee and you get your own section. Almost like apartments are. Might not be such a strain on the servers if they were instanced like that.

Also, and this is more of a general glamour question, but has Yoshi-P or any other dev ever said why they don't allow dungeon gear to be dyable? There are some nice pieces but the colors are wrong for my characters. I don't get why you can dye it.