I disagreed with your belief that there's no difference in spending between the two. What I was referring to, and you didn't understand, is that the most profiteering comes from the relaxed and straight arena (e.g. weaves, wigs, relaxers).
That's the point of weaves and wigs, whether it's straight or curly or a 'fro, you've no idea what the person is wearing underneath it. Could be relaxed or natural under it. The weave itself could be straight or not. I think I kinda get your point but even when the extension starts out straight in the bag it could be used for cornrows (to make them thicker or to make them last longer), or for braids. These aren't western beauty standards and are actually quite the opposite. The weaves and wigs bag is just so mixed to me, I see assigning them to relaxed heads (even mostly) as being rather random. Relaxers and other services performed in a salon will cost $$$ but again only tip towards relaxed heads in spending if naturals hardly ever get anything done in a hair salon.