This is an important question to ponder, and I’m suggesting turning the question around. How much should a coach receive?
Is the coaching face to face? Is it one to one or for a group? Is it for a specific personal/group goal, just a few obvious thoughts.
I’m raising this way to consider this, so that one begins to take account of what it is the coach does and how much time, experience, expertise, etc, the coach is providing. As a example, if the coaching is one to one, face to face, then your coach has sacrificed more than just the face to face time with you, prep time, travel to and fro, anti social hours, eg, early morning, late afternoon/evening or weekends, etc. How much would you sacrifice and for what fee, if the boot was on the other foot? The latter type of coaching, can often be the only income your coach gets for that entire morning, etc, its not like an 8 hour day of repeated paid sessions, all in the one location.
Then there is the coach themselves. Are they primarily an academic/researcher or a coach? Are they a retired elite athlete as opposed to someone with teaching/coaching skills. The latter can be vital, as many modern elite athletes have never experienced being say an age grouper, they were talent spotted at an early age and have hence had elite level coaching all the training years, hence, their coaching experience may have little basis in your world! Researcher vs coach, concept applies to many fields, eg, Psychology, a psychologist researches the working of the brain, but a psychiatrist is licensed to treat brain functioning, but both branches of this discipline studied psychology, but you can’t infer they both have equal skills.
It is important to note that every elite athlete is coached by a coach who was never as good as you are or will be. This year’s gold medalist is a ‘has been’ tomorrow, and their records will be broken by athletes coached by these ‘has beens’, some being very average athletes but fantastic coaches.
How important is face to face coaching, vs, an online training plan, how tailored and specific to the person is the latter, how good is the athletes application of each session, without the presence of a coach? Are your endurance or VO2 sessions really at the target level? Are you really going to get up at 4am when you know the weather forecast, if you aren’t going to get your butt kicked for wimping out?