Years ago, I had my E34 540 serviced at a large BMW dealer in Atlanta for a simple oil change. They completely botched it, overfilled the car, blew the rear main seal, etc. They blamed the issue on 'none of our techs know these old cars'. (This was in ~2007, so it wasn't even on classic plates yet) The issue of technical knowledge decay is very real.
The way I see it, the more techs/shops trained in servicing, repairing, and restoring our cars, the better the costs and availability will be. Otherwise, the knowledge will dwindle over time to the point of being completely boutique, like old Italian cars. The cars will be priced out of any sort of accessibility, so folks like myself and others of not rich means will have no chance to experience or even see these kinds of cars outside a museum.
