Woody, GAT is the number one selling PWO on Amazon.com
People know about it.
I just checked Amazon, its not the #1 best seller.
Naturo Nitro preworkout is. Not sure where you are getting your information from
And as
BRUstrong has stated, some people don't take supps at all.
I generally don't take a pre workout.
If my funds allow, I use HV or Ergonine. Not a stimulated pre workout. If I need energy, I take a nap, have sex, or drink coffee.
Lately, my pwo has been creatine, TMG, Beta Alanine, and whatever bulk pump product (cit. malate, agmantine, etc.) is on sale, mixed with either water or black coffee.
Edit, does that mean I don't even lift brahhhhh?