Hi Julia,
I think prices can vary a bit and it pays to look around. PM will charge more a premium, from my experience, whereas other restorers of the same quality and caliber - Mario Cueva, for example at Lumiere Poster Restoration, (and both located in So Calif, where I am, hence these 2 examples), may be less. I found this out when getting some pricing estimates from each for the same item.
But both do very fine work, too, imo.
Jeff