Hm...when you buy the 64oz bottle of Novus2 instead of the 8oz...or maybe that's just planning ahead?
We're at 2 in our tiny apartment and 1 project at my folks' house...if we pickup another (only if it's a must have deal from the wish list) it'll be going to a friend's to join his many pins until we get into a house next year!
We have a storage unit, but I can't bring myself to store a machine without climate control...
Once we have the space, we've planned for 5...which will turn into 7...then 20...then 50...then we'll just have to open our own arcade :3