I got a coupon in the mail today from Total Wine that gives $10 off any purchase $30 or more. Not bad for a wino like me. But this is strange - it says "Excludes items with prices ending in 7".
What is the reasoning behind that?
I would think it would just be a way of preserving profit margins on certain products (I'm not sure if you'd price low profit margin products that way to keep them positive or high ones to preserve the high margin), but that doesn't really satisfy me. What happens when you come to the register if you don't notice this caveat? Either you happened to get things that did not end in 7 and you never notice that you didn't read the caveat, or you did get things that end in 7 and you find out at the register that you didn't get the deal. Either way if you come with the coupon you're expecting the deal and you'll notice if you don't get it. So if you don't get it (when you expect to) you'll either add more things to the cart or you just won't use the coupon.
What I don't get is what this wacky caveat does that you couldn't do with sale stickers.