I've been through brush guard hell and can tell you that most all of the major brands are the same exact thing, maybe very minor differences, stamped out in mexico and china. They are boxed and sold here by various "manufacturers". *cough*
That given, why pay $450 for the same exact thing as the $250 one?
If it says 1.5" steel tubing, power coated paint etc etc, then there's really no difference in one from the other. There are DEFINITELY brands that I would avoid like the plague, and some online sellers that I would love to do serious grief to.
Aries sent me TWO units that were mislabeled and another brand I had to file a complaint with the ATG offices and BBB and still never got my money back.
Either buy the one off ebay, or buy a Westin. No matter what you buy, say the Rosary and pray they send you the right brackets and that you can figure out how to install it with the cryptic instructions.
$250 - $350 would be the most I would pay for any of them, including Westin. Google and craigslist are our friends.