I got a 250, 210, 100, and 75 off CL over the last couple of years. There were other deals I had to pass on because of financial constraints. I would guess new those tanks would cost around $3500 total, but I think I spent around $1000 and got some freebies with the purchases as well. Some canisters, wet dry filter, air pumps, etc...Of course the tanks aren't perfect but I am cheaper than I am picky. As mentioned above, once you get over the 125/150 gallon range and into 1/2 glass the weight of a glass tank is substantial, so acrylic would be the way to go if a move is likely.