Yeah, it's a great price! I contacted the seller and am on my way to pick it up. Thanks for the link!
(lol, just kidding!)
It seems to be a fair price. Around here, for some reason, there are a lot of tall, hex tanks for sale really cheap. I don't think they make a good tank personally since the volume per square foot is rather high (meaning you don't get a lot of surface area per volume).
I think they may a nice display tank, but more of a conversation piece than a decent environment for your fish. You'll have to check out the stand. It appears to be press board, which is "OK", but it will be susceptible to moisture and humidity.
Just my opinion though.
If you get it, good luck!