I'd suggest the difficulty is not with eBay as a chip market, but with recent "collector chips" such as you are offering, Matt. There just isn't a demand for most Limited Edition Nevada chips these days, either at auction, or at chip shows. I spoke to several dealers who are returning them to casinos for face value. I have a number of 10 year old, low issue, LE's that generate no interest as traders.

There are always exceptions, like Hard Rock chips that appeal to HR memorabilia collectors but commemorative Nevada chips are turning out to be about as good an investment as US commemorative postage stamps. The difference is that you can always mail a letter with your stamp, but with casinos like 4-Queens demonetizing their LE's, you may not be able to get face value for many of them.