Where I live there are groups of old men who come to the coffee shops in the evenings and buy one cup of coffee, then sit around bullshitting and playing cards

Where I live there are groups of old men who come to the coffee shops in the evenings and buy one cup of coffee, then sit around bullshitting and playing cards for hours. If this business is facing a similar problem, then raising the price of a cup of coffee to $5 simply won't cut it. Then again -- I know a lot of businesses despise these customers, but these are the guys who will be there night after night, rain or shine. Your typical customer comes by how often? Once every month or two? It's worthwhile to put up with them if they're not causing you to lose other business.