I'll tell you... they make their own MSRP tags!
I had it happen with a Samsonnite suitcase I bought. The tag said MSRP of $319... but when I brought it home, I realized they had put a NEW MSRP sticker over the old one that said $289! Yes, the suitcase was 60% off... but that was hardly a "bargain" (just a reasonable price)
I had some kohl's cash to redeem and realized while packing this week, my dh needs more boxers. Since the store is super close and the kohl's cash would make them virtually free, to Kohls I went!
So how much would you pay for a 4pk of cotton Hanes boxers? Kohl's wanted $30! And the sale (if you can call it that) was buy 1 get one half off. So for $45 I could get 8 pairs of regular Hanes cotton boxers.
Ended up at Target with a 5 pk for $16.
That's how Kohls make their money. They mark it way up in order to provide discounts down to "normal."