Three types of Johns.
Cheap hagglers who only consider themselves.
Responsible hobbyist who try to balance their finances along with their desire to share some time with someone who can brighten their day. I would guess 40% of hobbyist are in this category. Most would love to do an hour but most of the time I bet a lower cost is all they can do.
Then there are the affluent and they typically can be very generous. They typically set the bar for expensive companionship.
I am definitely in the second group. My favorite session is 30 minutes around lunchtime. It keeps me well UTR and I get what I desire. Overtime I have learned that some things just don't happen unless a unusual situation presents itself. So be it.