Why is the price difference between excimer laser surgery and femtosecond laser surgery so much?

Excimer laser surgery and femtosecond surgery are two concepts. Femtosecond laser is to make a corneal flap, while excimer laser is to make a lens on the corneal stroma after opening the flap, and then cover the corneal flap back, so that the whole operation is completed. The traditional excimer laser uses a knife to make corneal flap, and femtosecond laser uses laser to make corneal flap. Therefore, using two different instruments for surgery, the postoperative effect is also very different. So of course, the price will be much worse. Just like when the quasi-molecules first entered the market, isn't it expensive? Isn't the price much cheaper now than at the beginning? So in a few years, perhaps femtosecond surgery will become common and the price of surgery will be relatively cheap.