That's happened in the past with items I've ordered, as what appears to have been part of an arbitrage scheme - list items on Amazon that Walmart.com sells for

That's happened in the past with items I've ordered, as what appears to have been part of an arbitrage scheme - list items on Amazon that Walmart.com sells for less, and when you get an order, reorder it from Walmart.com with the Amazon buyer's shipping info. Every time it's happened and I've checked prices on Walmart.com, they've been ~20% lower than what I actually ended up paying. Seems like a cute little grift, all in all.