They will not cash it. According to the Hard Rock casino cage, they will only cash chips up to a $1000 denomination unless you can prove that you won the chip in the casino by either casino surveillance, pit boss, casino host etc. This is very common with most current Vegas casinos for $5000 denoms and up. You can google $5000 casino chip and find many articles regarding people trying to cash in $5000 chips without any success. If I could cash it, I certainly wouldn't be selling it on Ebay. The person who wins this Ebay auction, will be buying this chip to add to their collection and not to cash.