I payed $180 and honestly felt like it was a good deal, but I haven't been around as long as you guys. This guy is more expensive than the some obviously, but he has an awesome rep and I get the shit pretty fast.
You may know him as keychain man (this is not the distributor name), although I didn't get mine this time LoL
The cheapest I have found the 50cc bottle is $135 and that is from a domestic source. In a gym your talking about $300. However I would avoid it do to the high BA level. It will make your ass swell up like a puffer fish. Peace.