I bought a Hamster Heaven Metro minus the penthouse for £14.50
got it for £29 second hand off eBay, but it got a crack in the base during delivery so seller refunded me 50%
. I glued the crack and covered it with tape. Thankfully Poly isn't interested in peeling the tape off.
I removed the tubes due to Poly sleeping in there and becoming stinky due to lack of ventilation!