It's important to point out that owning a Bitcoin ATM has multiple benefits aside from the 5%-10% fee you receive on all transactions.
For one, you are building a savings account of Bitcoins that could multiply in value
Two, you will get listed on
Bitcoin ATM MapsThree, people will come visit your shop to Buy Bitcoins and hopefully buy something else.
On top of all that, you can sell the Bitcoin ATM later and recover much of your initial investment.
It's pretty much a win/win for any shop in a decent location. I drove 20 minutes to a gas station to Buy Bitcoins from their ATM.