Supplement stores, and clubs always want to increase foot traffic. More foot traffic = more sales. Appearances are a one time promotional event, meant to maximize media exposure. A business can usually cover their appearance expense with sales, and the media exposure they get is an added benefit. Advertising works on frequency, but a good event can make a lasting impression with a consumer for life.
Kardashian is payed to show up at clubs, because right now her celebrity is powerful enough to cause media attention, and a lot of foot traffic Same thing goes for Cutler, all the fags and muscle geeks show up, and load up on supplements when they are meeting Jay.
Today, while at the gym doing legs, I walk over to the front counter......lo and behold, there's that airhead, I guess with her worthless family. Yet another worthless "reality" show, on a worthless network. I had no fucking clue she had a show....I should have known....every talentless fuck out there has one.
Hell, the other day, while doing cardio, one of the TV's was showing some kind of "tattoo" parlor reality show.

Huh? ONLY IN Fucking America, where ANYONE, especially those without talent, can become a "celebrity".