The choice of doctors will also affect the price of scar removal. After all, even the most advanced instruments still need doctors to operate. How to set the parameters and how to deal with them will affect the scar removal effect. So I suggest you find an experienced expert, whose price is usually higher than that of ordinary doctors.
Different instruments and equipment also affect the price of scar removal. You cannot make a silk purse out of a sow's ear. Good doctors and advanced instruments can play a greater role, so different lasers will also produce different effects and different prices.