Mordecai was one of those people who's enthusiasm didn't decrease as he got tired.
"Thank you! Can I have a single room, please? I don't need much."
Although he then had to pause - wait, double rooms didn't have some sort of deal to encourage you to utilize them over a pair of singles? Eh, whatever - he wasn't two people anyway.
At least totodiles didn't take up much space. Good thing he wasn't an onix-that-disliked-pokeballs or sommat.