It would be interesting to hear the other side. I did a little googling on the subject and it said that this therapy does a more thorough job in getting rid of pre cancerous cells. I know from personal experience that dermabrasion and cryosurgery does not last. I also looked them up and found that the procedures often have to be repeated in a few years. I have found that to be true in my case.
So is it cheaper to have the treatment that you mention as opposed to treatment that needs to be repeated more often, if that is in fact the case? I don’t know. But I suspect that you do not know either. I suggest that you consult with a another doctor if you know one that you can confide in and see what his opinion is before you go accusing people of questionable acts. Now, you may be right. But then again you may be wrong.