https://www.ebay.com/itm/Riviera-Casino-Halloween-2002-100-Chip-1-of-31-Free-Shipping/152750480629

A very limited run of chips (max of 31, and probably less than that survive now). But $100 Halloween LE's seem like a very limited niche to collect too, IMO. Not sure if the demand is there, but that's what an auction is for.

(Not my auction, nor my area of collecting.)