Reminds me of all those people saying how well electricians/plumbers and other tradesmen earn.
Most of the time they are looking at someone with their own PLUMBING BUSINESS and saying how easy it is to make money.
Sorry, owning a business is not easy. Doesn't matter what type. There is a lot of risk, and people need to be rewarded for that risk. That is not free money.
If we look at the average repair guy for the a property manager, who works a fixed schedule with a fixed pay check and who and does plumbing and electricity, that guy will not be earning so well.