Well let me clarify that. There are actually 3 different sets sold by the horseshoe prior to closing. The first set is the ones pictured below - they show the binions horseshoe logo. It is a 500-peice set. The second and third are the same chips that have the WSOP logo. These come in both a 300 and 500 peice set.

My comments were only regarding the horseshoe logo'd chips, I don't have a comment on the others since I have only seen one set sold on Ebay and did not track the final bid.