The 40g breeder is the best choice available in the sale due to it being a bit wider than the 55g. I consider that to be a bare minimum size for a dragon (any age).
Just bought a 40 gallon from the sale, they are half off. So with tax mine came out to be 55 dollars. All things considering, that is still a prettu dang good deal. So of anyone is looking for a 40/50 gallon tank, i suggest that you go and get it now!!!! Before the sale ends!
Don't worry about the reptile section though, its' pretty bare bones... if that, (mine at least was.) The 1 hide that i liked in the section... was defective.