Guys like the one you describe are a rounding error in modern industrial refrigeration. Like a major company may use him they transition to modern equipment but

Guys like the one you describe are a rounding error in modern industrial refrigeration. Like a major company may use him they transition to modern equipment but at the scale they need he would raise all sorts of red flags not just in government regulators but insurance and investors doing their diligence. They are going to want to know why an expensive line item is going out. TLDR; you're friends business model doesn't scale and relies on very unique edge cases.