If the lab provides custom processing for every batch of Black & White they process (individual adjustments) then the price is fair (compare with Elevator in Toronto).
At Elevator we charge $45 per run, single shot all chems, 4 rolls of 120 or 6 rolls of 35 or 10 sheets of 4x5, or 5 sheets of 8x10. We can do up to 16 x20 .
as you can see single shot and one run at a time, if you have one roll of anything to run then it is $45 bucks( we do not hold single rolls until enough clients walk in the door, and rarely do we do a single roll run. Our turn around is about 3-6 days .
I am about to process a single job that consists of 300 4x5, 200 8x10 and 50 rolls of 120,all single shot in Pyro, this will work out to about 85 runs that I have to inspect each film as it comes off and then contact them. To me our prices are fair as this is a lot of work and considering the film, travel,time from work for the photographer our film processing is minimal.
In case the offhand reference to Elevator in my post was unclear, I do think that Elevator's price is very fair, for the service they provide.
If I was in Toronto (and if they would have me
) I would certainly consider having them do some of my work.