Ebay and some other places have some really cheap, low-quality versions that I'm staying away from. (These are the ones that have no brand name and look they will snap off).
So far the best one I've found is this one (Allen Deluxe 552RR 2015 for ~ $128 shipped): http://www.amazon.com/dp/B00TRTT178?psc=
I can look back in slickdeals and other sites and find some really good deals in the past on this bike rack and some other name brand ones, but nothing current. Anyway, just thought I'd check in here before biting the bullet.