I did not buy it, but I was quite tempted. Sams Club has "100% whey protein" on sale, with a 30 gram serving having 2g of carbs.
The price is $18 or so for 5 lbs.
The reason I did not buy it is that it is sweetened with some artificial "no carb" sweetener that I never heard about. If it was not sweetened, I would definitely buy it. It
People who are not as hung up on sweeteners may want to take advantage of this if they or their friends are sams club members.
I am not affiliated with Sams Club in any way and do not own Walmart stock (I own Costco stock, in fact, have owned it for about 3 years).