I recently joined PlanetTan. One choose them because they just opened a new location a few mins. drive from my house,
http://planettan.com/planettan.php
Also they had a special offer of unlimited tanning, all five levels of beds, plus unlimited spray tans, (versa Spa) for $49.99 a month, no contract, no init. fees etc.
Although I got a good price, that was not the main reason for joining... Location & its brand new, they are a franchise, and have the latest beds and 30 to 50 beds per location...