$400.00? or you can just go to the actual website that this jackass on eBay went to, get you name on the list (for free) and you will get an email when they are available for $165.00!!!
http://www.maximumvapors.com/The-Beast_p_514.html
Nitro has one of these and really likes it.
You would be surprised at what watts the typical sub ohm vaper vapes at.
.3 ohms 4.2 volts (for the first 10 seconds) = close to 60watts.
These boxes are good at keeping the voltage at 4.2 for the entire life of the 2 batteries.
All day for my 50watt OKR-T/10 boxes.
I can also understand why someone would buy this.
Instead of making a pipe bomb out of their mech or working their 50watt box at 110% capacity this box would be running at 50watts cool as a cucumber. For 2 days without changing batteries.
Also the Beast has been on the market since before the 50 watt IPV2 was even being thought of.