There is a mindset that came out of WWII and after, that anything Japanese is junk. We (well, most of us) have learned that is simply not so. I remember a story from 40+ years ago (probably just legend) about a company that sent a drill bit to Japan; asking them if they could reproduce one that small and of the hard temper: The answer was a hole drilled lengthwise through the sample bit.
Parker Reproductions will one day be worth lots of bucks, simply because they are extremely well made. The opportunity to own a 28 gauge original Parker is remote for most folks, however, I own and shoot a wonderful 2 trigger 28" straight stocked beavertail gun that is an absolute delight. For me to find and purchase an original like that would be impossible.
Yes, they will be worth collecting, as long as our next generations don't forget what a side by side is like.

Plus the fact that only about 10,000 Repros, in all gauges, were made and are made of modern, higher grade steels and with closer tolerances.
Original Parkers have that aura and mystique we all appreciate and wish they could only speak... but it won't be long before the Repros acquire those same attributes of desirability.

Remember - there will never be any more Parkers made.... and there will never be any more Parker Reproduction by Winchesters made either.