Walmart does regional pricing and assortment, meaning, prices and even the products they carry on the shelf may be different depending on what part of the country you live in. This is why Next Gen seems to be discontinued some areas, but doing strong in others. Regional pricing(even store to store pricing) also means that WM will test a price increase in a small amount of stores, just to see how much they price increase affects sales.
I am happy to say that I got my rebate checks for my QSUD purchases .