Poecilotheria housing?

after the new year begins I'm planning on getting a few Poecilotheria. I'm curious what you keepers house adults in. I was figuring large critter keepers but is the 10in height enough, on end would there be substrate loss? what are other not too expensive housing options other than 10gal aquariums on end? Here in the desert humidity holding is a factor to remember as well.