The issue of returned bodies and lenses was brought up in another thread:
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/206936-b-h-bla...-sold-new.html
Probably a lot of us are curious how B&H handles returns, specifically for Pentax. All my new Pentax items from B&H, Adorama, and Amazon have appeared to indeed be brand new. But, I've returned items (not to B&H specifically), and I'm wondering what happens to them. Generally I only return an item because I consider it defective. With regard to lenses in particular, some have been what I consider blatantly defective; other items have been more marginally defective. Sometimes it's difficult to know (especially without multiple copies to compare to) whether a lens is lacking in manufacture vs. lacking in design. I'm guessing that you may not be able to return items to the manufacturer for customer-alleged performance reasons, so if you can't... what happens to them?
Paul