I have been a major sized operator, distributor and well know manufacturer. My going rate to buy and I have purchased 8 routes is to pay 50 times the operators share, including games. I would want a guarantee that the location would be in business for a certain length of time. Say 35 weeks or I get a refund of some type. Now that number includes juke boxes which are worth more and some other type of games. Right now in 2018 most operators are not as interested in pinball as they have been.
If I were the gentleman who wants to sell, I would search within a 20 mile radius of his house and look for more locations. The operation of coin op games is a great business. Ever see an operator go bankrupt?