Never buy X-pole or Lil' Mynx if you want to actually swing around the pole....as it won't hold your body weight. If you want a pole that doesn't actually bolt into the roof and ceiling, that's held by tension by the studs in the ceiling, then you should check out

or even tantra fitness...they're a little more money, but it's worth it.
I do know some people who may be selling their's from Aradia Fitness b/c they no longer have the room for it. They're used, but still in great condition. If you're interested, PM me and I can find out if they still have them.