At about $115 a month, the Midtown Athletic Club in Weston is about triple the cost of Gold's Gym or L.A. Fitness. But those other places don't have 25 tennis courts, three pools, and classes on how to dance the zumba. Bring CDs and DVDs to play while you're burning calories on the elliptical trainer, bike, or treadmill, each of which comes equipped with its own 15-inch LCD screen. As they say at the Midtown, "It's not just a club, it's a community," which may explain why they also host wine-tastings, a movie night, and even a junior fashion show.