As Micheal said, you may have some chips in this list worth some decent money.
If the Reef $5 casino is Mustard with Black inserts from Antigua, that is probably worth a few bucks. I wouldn't want to guess what a "few" bucks is, but it's more than face value. That is just one example that I noticed as well as some of the ones Michael mentioned.

Condition really matters, so without pictures/scans, you will never be able to maximize your return.

Good Luck - Scotto