Why is there such a big difference in prices between Juveloc hospitals?

I'm looking up prices to get Juvelook, and even though it's the same procedure, the difference is quite significant between clinics.

I'm worried about going to a cheap place, but I'm also concerned that expensive places aren't necessarily always better, so I'm really conflicted.

I heard that I should also check the dosage and the procedure method. What did you consider most important when choosing a hospital? It's my first time, so it's hard to set criteria.