@PGM @windsorguy
Glad you are both satisfied with your picks, no quarrel with ya whatsoever but a little FYI- Most sports supps at Walmart and a bunch of other similar type stores are part of a multi tier product selection that each manufacturer provides.
The quality or potency of something like a whey powder might well be fine or lesser than some other brand but if you are happy with it then that's great. Where people may want to watch more carefully is the tiers within any specific brand.
If you are a fan of ABC Brand Whey Isolate that you get from the ABC website or a supp store there is no guarantee that getting it cheaper at Walmart is a better deal. Check the label carefully, ingredients, quality and potency are likely less which means they can sell for less. That does not make it a better deal however.