Despite the good that the procedure accomplishes and the generally high spirits of everyone involved in the surgical process, it's still a business. Fortunately, in healthcare, our efforts to make a profit come second to our allegiance to the welfare of the patient. Or, at least they are supposed to.
Businesses have startup costs and operating costs.
Startup costs are eventually paid by operating profits from a successful enterprise. Operating costs are the day to day expenses for salaries, advertising, rent, utilities, supplies, repairs and maintenance, etc. Additionally, there are often amortization payments for loans necessary to get the business going. It's expensive to get an excimer laser. You have to put the thing somewhere, hire a couple of people to help operate it, and figure out what to do with those people when it's not being used.