From what I gathered, the Core line of PRS acoustics was "cannibalized" by too many buyers opting to spend a couple thousand more and getting a PS. By the time you were ready to pony up for the Core acoustic price point, going full PS wasn't that hard.
There are manufacturers that produce US-made acoustics at price points lower than PRS Core electrics, but higher than PRS S2 line - in the mid to high $2K range. And PRS could probably pull that off with aplomb. For whatever reason, PRS has deemed it not a profitable-enough venture right now - the capital and training to get that line up and running could instead be used to expand the existing lines, which are very backed up as we all know.
I know I love my Core Steve Fischer Angelus. There a few out there on the used market, just be patient and snag one...before I grab another!