In last years competition desperation, over several weeks I bought loads of Worthy Farm Reserve Cheddar Cheese. I bought it in a co-op group store, paid and used my membership card for each block of cheese separately. Not once did it say anything about the competition on my receipts. To this day I still don't know if I was entered into the ticket draw or not.
It's a great marketing tool from the name to the experience. Reveal some names in an old school game/gambling style and also give a chance to win something.
They also have this on the card you receive.
DON'T LOSE YOUR TRUCK COIN - BRING IT WITH YOU TO THE FESTIVAL NEXT YEAR FOR A SURPRISE.
So, there is more to it then a throw away reveal. You might just get a lolly pop, a badge or something minor but a nice way to continue the PR experience. I'm hoping it's a beer token ☺️