This article smells more of self-aggrandizing attitude than sound business reasoning. I'm amazed that he would bother with the artifice of negotiating when he's essentially unwilling to budge from his friend's price tier. That's not negotiating. FWIW, contract strikes work just as well (sometimes better) on gym memberships as for any other legal agreement. If he's willing to pay the "full price", but doesn't want to…
Part of the appeal is definitely the "exclusivity" via the pricing -- in LA, for example, the nearest (location-wise) choices are a 24 hr fitness ($199/yr) which gets terrible (1-2 star) reviews online, Equinox which is twice the price of Crunch, and quite a few private gyms. But in all fairness, the gym does offer justifiable perks for the price -- for instance a huge selection of classes which appeal as a middle ground to people who don't want to spend even more on yoga studios or personal training.