FWIW, I was able to snag a very pretty AB460 in a SGC 50 off ebay as a BIN for $125 about a month ago. You will NEVER see a BL350 in that grade sell for anywhere close to $125. BL350 is tougher than AB460.
http://cgi.ebay.com/ws/eBayISAPI.dll...m=250583328186