[butlike]

I thought the commonly-held definition of gambling is: "it's gambling if it introduces risk."

e.g. a transaction to buy paper towels is not introducing risk, since I pay an amount and get something.

If I have a chance of not receiving those paper towels if I put money in, then it's considered gambling because the inherent activity introduces risk. It's the same reason the lootboxes were considered gambling at first, and the same reason I classify betting on a chess game as gambling. You're player may potentially not win.