I agree as well. It does feel better having an original graflex, but that's not necessarily for the lightsaber's sake. For me it's cool to have something the prop-makers back then would have used. If I had a replica I would be equally as happy - prop wise. Maybe for nostalgia's sake i'd be a little bummed, but that's not really a prop-thing.
I think people are worried about $400 flash guns showing up on the market that aren't actually from the 50's (or w.e time period we're talking about), but with these details, they might be able to sell them to people willing to pay more for a real item rather than a great copy by parks.
Though, honestly, I wouldn't even pay that for a real one. These things are worthless to camera collectors, comparatively. Graflites are 25-50 bucks, the only thing making these any more special is the lack of plastic and the cameras they come with. The only reason they go over $200 is that we are so desperate for them.
I do believe, though that there will always be some way to tell if it's real. If not, well these things aren't crap, even the replicas are sturdy impressive pieces of equipment. Just don't spend more than Parks on anything and work out the details from there...