Yes maybe, but let me add this.
Where I tend to lose money is more about educating the customer because that is not billable. This involves showing the differences and truthfully explaining the options.
FWIW, most of my Customers have chosen us to restore their car because they want quality the first time. That is our goal, which is to give them a restored Model-A that Stops, Starts, and Steers correctly, -and everything Functions as it was designed without squeaks & rattles. For those hobbyists that expect that, they just need to understand how the hobby has trended over the years from Restoration of parts to Replacement of Parts, ...and how this has not necessarily been a good thing.
Ironically, we are seeing a trend where my customers are wanting us to Restore instead of Replace. Not trying to take food away from Model-A reproduction parts manufacturer's mouths, but take a moment to consider this. If two Model-As were hypothetically restored at the same time (-lets say 25 years ago) with equal quality craftsmanship, HOWEVER one Model-A was restored with all NOS parts, ...and the other one was restored with all Reproduction parts. Would you say after 25 years and them both driven 25,000 miles, that both cars would drive/function the same, -or would one of the Restorations be better in quality and functionality than the other?
I think we know the answer in this. It is my belief that the 25 year old reproduction plated parts would have prematurely corroded by now, and likely the Ammeter would have failed before the 25k miles were driven, and the repro Hoses would have cracked by now, etc. etc.
Additionally, after those 25k miles, what condition would repro brake parts be in, or the offshore repro transmission gears, or repro steering components, repro shocks, ...and the list goes on and on, and on comparing the Repro vs NOS items.
Now in fairness, some NOS parts might be marginally better than quality Reproduction parts, -and some might be the same, ...however will there be a large list of items that are not the same quality of the ones that were installed as NOS? So ...did we really save money on buying reproduction parts when we consider the value differences of our Model-A today??