I'd also have to agree with MM.

Holiday makers go to a place to see the sights, so I don't think they'd go for a weekend hire.

If you had a space where all your pinnies were together and hire that out on a day/night basis for groups, might get some interest.
I think if you only charged for the room hire or just entry and had all the pins set to free play I think you could attract people, especially if it is a town that see overturn of tourists. I know I'd be keen by like whats been said already, replies from people on this forum will tend to be positively biased towards using pins on holidays.

I think as a side business maybe but not as your main income earner.

Good luck with whatever you decide