A few thoughts, some covered so far, some not.
These rumors come and go, I will believe it when Athearn tells us.
Blue Box kits have had knuckle couplers for a decade and I’m sure that has no effect on cost. The whole purpose of all these cheap knock off couplers was to provide a Kadee compatible coupler for no more cost than the X2F.
Blue box kits where made here until this past year, and as important as they where years ago, sales are down and the market has changed.
A better move on Athearn’s part may be to offer undecorated versions of Ready to Roll products and include all the “improvements”, like caboose window glass and improved caboose end rail detail, etc.
Some products have been improved quite a bit (see caboose comments above), others have been replaced with better MDC tooling (40’ box car), and others have been left the same. Too many people commenting about this only have experiance with what they buy for their era, roadname, etc. Your comments do not necessarily apply to the whole product line. Some RTR versions have seen big improvements, some none. BUT, all the China done painting and lettering is better, so lets go for it!
Athearn has always used batch production, products are always reissued or reinvented when there is new demand. “Back in the day” I remember some items being out of production for years between runs, but they all came back at some point. There is lots of “new old stock” out there and with the WWW it is even easier to find when you want it.
I build kits, I buy RTR, I have simple (blue box quality detail) and new high detail (like Kadee, Proto, Intermountain) RTR and kits, but I have no complaint with those who exclude one or the other for whatever personal reasons. I may not have much in common with someone who builds nothing they run, but it is THEIR hobby. I will not be told how to build