Looks like you can try them out free for a week: http://www.anytimefitness.com/en-us/clubs/pass/276

I have a Bally's membership and pay $100 a year, but that's low because I joined a long time ago and my contract with them keeps them from raising rates more than a certain percentage a year. And then I usually pay for 3 years at a time. They also have a 7-day pass thing going on: http://www.ballyfitness.com/get-started/guest-pass/free-guest-pass.aspx