Of course, it's not just the pretzel you're paying for. There's the transport to get it there. The storage facility. The CM who takes it out of the box. The CM who carries it out to the cart/CS location. The CM who sells it to you. The tissue the CM wraps it in. The power that runs the box that it hangs in. The mandatory cheese sauce. The CM who empties the trash can you threw half of it in when you got in line for your 2:45 FP+. The plastic bag in the trash can. The trash truck that hauls it away. The waste processing fee. And the salaries of all the Executives, managers, team leads, administrators, and other people who support that effort -- even the CM who cleans the toilet where you dispose of that part of the pretzel you didn't throw away (admittedly, it's probably the next day or so)...
But your point is valid... stop paying $6 for pretzels, and they'll cut the price to $5 -- and possibly fire a third of the trash crew CMs.