There is an eBay seller who puts up the early 90's set, minus the 1 and 5,000 chip from time to time. I got a set for about $60 last year. I seem to remember that it was hard to find the set, because the seller was listing it as "WSOP Set", with no mention of "Binions", "Chip", and "Horseshoe", in the title which was how I usually searched.

You also see the 5K and 10K of the next issue (late 90's) every now and then. The 10K gets about $100, the 5K, a little less. In 3+ years of looking on eBay, I have never seen the 500 or 1K of the late 90's issue for sale. Which means there are probably five thousand of each in someones attic just waiting to flood the market, because this IS Binions we are talking about.