I didnโt see any vending machines, but there was a shop/snack stand near the top of Mt. Sinai in Egypt. I climbed that mountain in 1996, the route with the 3,750 โsteps of penitence.โ And that was a lot of steps. And when you finish, calves aflame, you see the inspiring sight of a bunch of other mountains that look just like it. That is, kinda tan and featureless.
Did it once, would not do it again.