"Place are limited due to room size"
I just saw that in a brochure.
Daftest sentence I've ever read. Really? If I give you money, you won't just hire a bigger room?
Scarcity is a powerful thing, but at least put some thought into it.
"We've limited available places to keep the experience as close and focused as possible"
is a bit better. Still not great, but at least it has some meaning.