Bitcoin ATM isn't that easy to build as a business. You need to conduct a study on how many bitcoin/crypto users are around your area where you'll be placing your machine. Without knowing this kind of stuff you're not to fit to stand a bitcoin ATM machine not until you gather enough information that your business may bloom. It doesn't work like there's only few machines out there If I place one I can profit.
I've talked to people in the two stores locally with Bitcoin ATMs (a vape shop and a 24-hour convenience store), and they have told me they get a small but steady stream of people using the ATMs.
It is a goodnews and from that small counts they can surely earn a little but sufficient profit from that. Bitcoin atms has alot of.potential if you can pick the right place and population to place your bitcoin ATM.
Having a steady stream of people using customer at the current stage of bitcoins popularity is good considerding that bitcoin is still not widely accepted and once the day it came true those businesses will surely boom.