sommethings have to be taken in to consideration and context. SO really can't answer your pricing questions. Case in point.
My farrier charged me $20 for a trim, one day he came out charged me $40..... sounds bad. And is an example of how the media lies by telling the truth.
Ok the rest of the story,,, I live in BFE, I had one horse full shod, one horse half shod, and one old guy that just got trimmed, so 90, 70 and 20,,, later old guy died, half shod, went away, wasnt riding full shod, so only needed a trim, so $40. And I don't blame him and had no problem paying, Basically a $20 fuel and drive time surcharge to come out and do only one horse trim.
Now as far as the quality of your guy that's a different story and may need more research. DOesnt sound like your friends horse needs shoes but I wouldnt second guess another mans work without seeing it. I have seen horses that needed shoes whether they were being ridden or not.