I am yet to buy anything, but I am watching all the time for something to come. I have recommended the site to a couple co-workers when the Arbor boards came up. My only complaint I guess is I wish stuff rotated quicker. I usually get sick of checking back looking at the same stuff for four days, so I end up checking back in like 10-14 days and totally miss some stuff.
Get yourself on the e-mail list. One e-mail every 4 days as the new stuff comes out (also tells you what's coming up). Not annoying and they don't overdo it.