Pat, I wasn't really referring to ANGC. Mentioning costs, and ANGC, isn't germane.
I was concerned about all those course that try to keep up with Joneses.
Unless preventing disease is their justification, I don't see why a well designed green and surrounds, would require the expenditure, if all one has to do is wait a few hours for similar results.
Can someone who is familiar with these systems, educate us on the real benefits?