Sounds fun! Although it might sound fun, will it be necessary and usefull? You can test gadgets, trails, miniatures, heads and everythig else in the lobbies. But you can’t test the cages. But do you really need a testing room because you want to see every cage you have? I wouldn’t even use the room, as it won’t be usefull. Why not? Well, you can actually test out 95% of the vanity in the lobbies. Having a testing room just so you can see your cages, no thank you. Mostly, when I get a new cage, I just select that one and join a game to see if it’s cool. If not, alright, I’ll select my favorite cage right after the game ended. If you already have a favorite cage and you know how all the other cages look, you don’t even need a testing room because you get a new cage every now and then and you will be able to see it in no time. So in general, a testing room will not become handy.
I voted no but gave you a like anyway, because of the creativity, hehe.