Right, and the comparison is usually not over price, but perceived quality. The best example for doctors is elective plastic surgery. Do you get a boob job from the cheapest or the best? The glut of expensive surgeons in the L.A. area indicates cost is not a major factor.
For lawyers it might be a lawsuit. Do you go with the cheapest lawyer? Most people go with who they think is most likely to win the case (or net the most money from the suit).
> The glut of expensive surgeons in the L.A. area indicates cost is not a major factor.
Unless you're also going to argue that the large number of expensive cars in LA "indicates that cost is not a major factor" for cars. (The same can be said for handbags.)
Never confuse what rich folk will pay for luxuries with real world prices.