There are a lot of tanks around here for sale at very high prices, but they don't sell. They stay on cl. There are Good deals, but they don't last long. I agree that $1 per gallon is a bit high until you get to the big tanks above 100 gallons. These are rarer so demand higher prices. I have also had Good luck posting the size that I want on a local Facebook garage sale and including what I will pay. I got a 75gallon with stand, light, tips, and fluval 404 for $125. Probably would not get near that deal on cl.