That is too funny....
I don't have a large 'apartment on wheels' but I can take a bath in mine (and can take a really warm shower in the box with lots of room to move around), I got my own bathroom with a view and I cook in my own kitchen. I also have a big screen TV (relatively speaking), Bose surround sound system and soon a nice skylight. Not to mention the features that every sleeper should have, running water when it rains, a lot of storage, improperly installed and frayed wiring direct from the manufacture and subfloors that rot.
But overall I can do most in my little sleeper than most can do with their apartment on wheels, except hold BBQ's, I really cant have a pit in the sleeper.