LaFitness usually has good prices. you gotta wait until the end of the month(last week) that's when they throw the deals around.

and when they sit you down they'll spend a few minutes spinnin' some BS thendrop the monthly $10 and that's what you get.
p.s. their memberships are month to month(you pay 1st and last when you join) or paid in full. so you could leave when ever you want to.