Does anyone know if these tickets have any collector value? I've looked on ebay and I can't find any of these tickets for sale.

These tickets were given out by slot machine attendants when a slot player would hit a jackpot back in the day when $7.50 jackpots were paid by hand. They could be saved up and used to purchase items from a redemption store in the casino. I don't know the dates when Harrahs Reno and Lake Tahoe started or stopped giving these tickets out. Any information would be helpful.

Scott