I wonder if location has a big factor tank cost. In Sacramento CA a brand new 55gal AGA tank can cost any where from $100 to $200. I had to buy a replacemtn 135gal and paid $300bucks for it new. And on craigslist around here I see people seeling their tanks for outrages amounts. I do see deals everyonce in a while. Someone was selling a 240gal with hood, stand, canopy, sump for $500, I got my 80gal AGA for $100 used, and got my 300gal Acrylic with stand, canopy, sump, uv filter, pumps, everything needed for saltwater for $1000. Then I converted it to freshwater. So if your getting go deals on tanks in CA speak up and please prove me wrong, this is one of the few times I hope I am wrong.