If you want to speend months selling one and two chips, you might find it tedious, costly and not profitable in the long run when interested "collectors" dry up after 20 sets.

Personal Opinion

Put all of them up on eBay as one lot, and get it over with.

Good luck. Just because they sold for 65c in the store or 75c on the web, it doesn't mean you will find a buyer for more than 35c a chip, on a good day.