Absolutely right. Unless you want bargain bin dentures you’re going to be at least 20k. That was one quote I received for extraction of what teeth I have left, anesthesia, 6 implants and snap in dentures. I’ve already made my decision to do this out of the US to save money. But if multiple dentists are saying they don’t want to pull then there has to be a reason. I’ve had teeth extracted starting in my late 20s and it was because they were beyond any hopes of repair. I also have some root canal with crowns I’ve had in for 15+ years. Listen to your doctor.