Parker Gun Collectors Association Forums - Double trigger repro's on G.I.

Isn't it unusual that double triggered Parker Reproduction shotguns are currently 20% of the Repro's listed on G.I. right now? A couple are sold or pending but still shown. Mostly 20ga guns and most straight stocks and splinter forends. There is one nice set of cased, consecutively numbered 12ga guns, both with DT, SS, SF and 28" ic/mod chokes for sale as a set at $9200 for the set. That is only $4600 each.
Although I currently own two repro's I'm mostly interested in the vintage Meriden guns, but would have been a buyer on one of the two 20 ga's listed if I had seen them before they got snapped up. Both had some use but were priced what I believe was very reasonable, considering the configuration. What say you?