It's a good thing because our new house in Texas will have the master bedroom on the first floor and 3 or 4 bedrooms on the second floor. Also the playroom will probably be on the second floor too, so I'm hoping most of the toys will stay contained up there. That may be a bit unreasonable, but we'll see.
One idea I have is to use either the study (always off to the right of the foyer and generally enclosed by french doors) or perhaps a media room if the house has one as a dedicated photo studio. It would take a bit of investment in equipment to really set it up professionally, but with more space in the house and more time when Alex is in daycare part time it's a possibility. The idea is pretty exciting to me.