This has been my experience with vending. I purchased a charity candy route that had 30 located machines and about 30 unlocated machines. With my charity route, I was constantly relocating machines and losing locations. My route was in a 30 mile radius, to service every machine would take about 6 hours roughly, including driving. This route I made about $300 per month, before expenses. Which I was ok with.
Then i purchased 2 tomy gachas machines, put them in 2 busy pizza spots, on commision. With those 2 machines combined, I averaged $140 a month. I sold my charity route. I now have those two pizza spots, plus one more with a double head with 1" caps and skittles. For only 3 locations I average $170 a month before paying my 25% commision, and I can service those 3 locations in under a hour including driving. Im no expert, but to me building slow with toy/commision locations is the way to go. I made decent money with the charity route, and had a great return on my initial investment. But it was way more hassle and work. Plus Ive never had to throw capsules in the garbage because of spoilage.