There is nothing fishy here. My dealer had a close relationship with owner at the time and heard about this straight from him. ( my friend is very savvy in manufacturing and has good EQ, so he was not being deceived.
Audio Research keeps a stock of parts to service discontinued products. Many very very old products can still be serviced. It is one of the many reasons to own ARC products.
I own a Ref CD9SE and have no worries at all. Also, had I not owned it when it was discontinued, I would have unhesitatingly bought one. Now, if it was made by a lessor company, I might hesitate.