In reply to Randall Flagg.

The three criteria for an illegal lottery are 1) chance, 2) prize, and 3) consideration. Were it not for the involved "no purchase necessary" protocol, the Domino promotion would meet all three. It doesn't matter that you're buying a pizza with your money. The "consideration" would be that you have to buy a pizza to enter.

But isn't the postage to enter without purchase a "consideration", you ask? No, because it does not go to Domino's, but rather an unrelated party (USPS) to get the entry materials to you.

This, of course, is Byzantine. Many companies running similar promotions (like McDonalds) give you the option of just stopping by to pick up a promo piece.

Meanwhile, as Mr. Consumer correctly the "expectation value" of that promo card is less than the money you're spending to get it (not even counting the time you spend writing for it). Not a good deal, unless you want a pizza.