cheap tanks

For those who don't know, Jeff (my hubby) and I got a great deal on a used 4'x2'x2' tank - $200aud and it's already been drilled for a sump. If that wasn't awesome enough, when he got back with the 4x2x2 he had a surprise for me... He brought a 6'x1.5'x1' that he picks upon Tuesday, and...

I noticed petsmart sells new 125 gallon tanks for less than 500$. (Normal 72x18 footprint) They come with a cheap stand and crappy lights, but it seems like it's still a good deal for just the tank. I have been thinking about replacing one of my 125's and was wondering if these are of good...