I have an account at a cabinet shop which has about 20 people building cabinets and 15 people working in the office. I have a USI GF-12/CD-6 there. This place bring in anywhere from $275-$325 a month. It takes me 10 minutes to service this location. I wish I had more of these but its hard to size up a place like that. Sometimes I guess you have to try it out and if it doesn't work then pull it.
Your right, there is never any harm in trying out locations. I have all mechanical machines, none of the electronic machines you guys are refuring to, but between lunch rooms and showrooms like car dealerships, I maintain 50 combination units that make about 4500 in sales a month over 6 days of work (3 runs that i do twice a month). I wish I had more big accounts but a big corporation like Red Carpet Vending here in canada has contracts with basically every large chain of hotels, malls, ect usually national contracts that cant be broken in small towns that they refuse to sevice well. I find the small locations at least keep my machines moving some kind of money while I look for more locations. If a current location is under your break even amount, whatever you set it at, then at least its not in your garage and you can easily reposition it once you find another location to try out. And depending on your costs of referbished machines, the mechanical ones can go for as little as $600 for a combination pop and snack machine... That kind of small investment can even make a $50-$75 dollar a month seem worth while, and you probably wont have to service it as often anyway.
I use to have quite a few in mechanic shops, but the mechanical machines would always get about about 20% theft, so I am slowly pulling them out. I just have to fight too hard to find new locations due to the big guys and their competition. Any suggestions on where you have them that maybe might work for me as well?