The price for the spots are all the same, no sliding scale, whether you are there for one night, or the whole stay.
Don't be a cheapskate, just pony up.
The only exception is if you want a place to crash on Saturday night. If that's the case, (@fireball and @TrapperHunt) , then we can definitely squeeze you in somewhere. Just bring a contribution to the group (besides good company), you know...BOOZE!