It's close, maybe $55 more than it should be. There is very little markup on tanks cause they get that back on everything else.
Did you look at the Oceanic Tech tank series? Very nice for a standard manufactured tank. No braces, 1/2" glass, ABS splash guard (like euro-bracing but with ABS vs glass), low profile wide centered overflow box, black rear glass pane and most importantly, front low iron lead glass pane. Plus the no center brace is a biggie too.
I saw the 90g at an LFS last weekend and had the owner lookup the largest tank that Oceanic makes in this series. It was a 120g.