I got the 24 Hour Fitness pass from Costco. You have to commit to going to the gym for two years but if you were to pay monthly its about $14 a month. Last I checked LA Fitness and 24's lowest single club plan was $25 a month. Plus you can work out at any Active or Sport club in the US and most of them are open 24 hours a day.
Have to commit for two years?! Health and fitness is a lifelong commitment.