First, Zap is right, whey is a byproduct of the dairy industry, nobody is buying milk to make it. Which is probably why whey protein prices aren’t rising as fast as some other foods.
When you buy Biotest you buy direct from the manufacturer. You’re not paying for a middleman or two. Biotest also does very little print advertising, which probably saves them a ton of money over companies with eight-page spreads in every exercise magazine.
I assume the OP was talking about Grow!, how does it compare to the average run of the mill whey proteins out there?
It tastes better, it’s easier on my stomach, and the weird acne on my shoulders went away (which means now I have to figure out what protein source I was using gives me acne!). It also has one of the shorter ingredients lists I’ve seen, which is usually a good sign that it’s not being adulterated with stuff I can’t pronounce.