Dicks has a sale on quest ez up's. Figured this might help someone 49.99 and free shipping. They have a 12x12 too for 99.99 i think. http://www.dickssportinggoods.com/product/index.jsp?productId=2935027
I've got one of these and they are very cheaply made. Probably an OK buy at that price but I've used mine 3 times and one of the legs folded like a beer can when I tried to put a strap on the frame to hold it down on a windy track day. Also one of the buttons that clicks to lock the leg into place broke the very first time I used it. YMMV
I have one if those as well. It is not the best I've ever seen, but it has been pretty good. It is definitely worth $50
I got a 10x10 strait leg at wal mart for 46.99. 3 trackdays and a few cookouts later it's still working.