The local pool room here offers a monthly membership, just wondering how many other rooms offer one?
I wish they did, but it might not be a good business decision for some places. They'd be purchased by the heavy users and it's probably better to milk them on hourly rates.
Another strategy that I suspect is rarely used would be to offer membership with discounted hourly rates -- extract that consumer surplus! (Econ 101)
Here its like $50.00 for Monday thru Friday and $65.00 for all days.