I bought it for 60 bucks a few months back and LOVE it. It is a little pricey I guess, but if you already have EGO batts, etc, it's not bad. With all the money we all spend on e-cigs, whats another 60? Going from standard EGO to the Booster is like night and day. I have a liquinator hooked up to it now and it's amazing. DO NOT get the EGO-T VV battery for a few reasons. First, once the battery dies, it's done. Secondly, it's not actually a VV device, you can read up on it in the forums. Not worth the money, spend a little more and get the booster.
If you don't have any EGO equipment, then it may be more prudent to look at other options.