[jarek]

So, a disclaimer: I don't do groupons, restaurant or otherwise. But...

> Because when you get the bill, it's reduced from the retail price.

So? When you get the cheapest meal, it's 'reduced' from the average meal price too.

If hypothetically a restaurant's management was going to permanently drop its meal prices by half, would you still tip on the old price?

> that could be why waiters don't like daily deal customers.

If the restaurant is running a groupon, waiters have much more reason to dislike the management than to dislike the customers.

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The tipping mechanism for paying restaurant staff semi-decent wages creates some really weird cases like this one. The dislike of discount shoppers would never be an issue in locations where meal prices pay for semi-decent staff wages - the financial risk would be taken up solely by the owners/management making the decision.