The Walmart near me conveniently has the "scan here for price" thingy right in the Lego section. When I'm over buying groceries, I'll hit the Lego aisle and scan a bunch of items looking for a mismarked item. The annoying part is the super loud beep each time you scan something. Anyway..... I've noticed a few big sets that are gradually decreasing in price in the scanner system - but the price marked on the shelf stays exactly the same. There's a particular $119.99 set that was at about $105 for a week, then $100 even, now today it was at (if I remember right) $84.95. I've watched it go down in price over the course of a month. Same for another large set. And I see several others where the shelf price is $99.99, but the scanner will say something like $99.36. Off less than a dollar, but maybe that's a sign that it'll soon be less than $99.36, and maybe a bunch lower. Anyone have any experience following trends like this, and then scoring?