I'm not going to worry about their profit, none of my business, but I do know that some but not all restaurants jack up their menu prices to pay for those high fees. Presumably that depresses sales at those restaurants, and we often see generous "promotions" that bring the food prices back down to attractive levels (often even cheaper than eating there in person). Not sure how those promotions are absorbed exactly. Some will remember HUNGRY NOW in Pattaya which was absolutely fantastic as far as service, prices, choice, and constant promotions. They were targetted at f-rangs and it was clear to me they were trying to buy market share from the Big Boys. Sadly they failed.