I think it's the same with any profession when they know you are ignorant in their field.
Hopefully your doc's aren't like some mechanics helping female customers. ($50 for the coolant converter, $75 to replace the go-go-gadget-doohicky, $150 to electronically diagnose the problem, and $300 in labor fees after keeping her car for 3 weeks.)
It's a little different when it comes to your life though. I would rather spend extra time knowing what's wrong with "my" system.
Hope all goes well, and you don't have to wait for 3 weeks. 
Greg