exactly, but usually, they are working in a group so it's not like the new technician works alone. plus, there is always the option of going with a dr that performs the whole operation himself like keser, but he charges 3.5euro per graft, it's 3-4times the amount of other clinics. if you have the money nobody would suggest you not to go there. for example for me 10k is a lot compared to 2k. I may have to go twice so I cant afford 20k.
the only thing that is important is to do your research and see as many result as you can. the only negative review I saw of this doctor was that,some guy said "people were coming in and out during operation and some of the technicians were using phone during the operation" but it was a few years ago and I'm assuming they saw the bad review and already took measures that this doesn't happen again.
they are very careful about bad reviews so I'm guessing they wouldn't want somebody bad mouthing them either after a bad surgery,therefore they would train their technicians very well. in this business, the reviews can end you.
look for as many before/after reviews as you can to see how they turned out and how was their experience, especially the ones that have journals like this thread. they wouldn't be fake because the patient writes his experience with pictures of himself.
I'm considering this dr as well, if I could afford to spend more money I would go with a dr that does it himself, but since I can't afford it, I'll just settle with the best one at my budget.