10 or less gallon Aqueon brand tanks have a 90 day seam and breakage manufacturers warranty. 15 to 55 gallon Aqueons have a 5 year warranty and 56+ gallon ones have a lifetime warranty. Except the warranties only apply if you have them on their brand of aquarium stand, don't pick it up while it's filled, yada yada yada.
Anyways what I was getting at was that if you can't find a retailer who offers a a good warranty with their tanks, maybe a tank with a good manufacturers warranty will do. The Aqueon warranty that came with my tank says you can return it to the store where you got it from, so I have no clue how they'll tell or care what stand you had it on or any of that.