It's so tempting to buy more cages but I really don't need them. My 2 custom made ones are meant to be getting made sometime tomorrow. I might want to upgrade my gerbil home eventually and sell my rotastak though. I'll see how it goes because I'd have to get something bigger then what they have and at the moment they have a tank and 3 floors. (4 circle rotastaks and 1 cosmo pod on top). But I don't want to get too many because I'll be moving after I finish university and I don't want to ship all of them.