Thanks for the answers; I appreciate them. On the subject of "refurbs," I will add that in the past decade I have bought two "factory refurbished" units from a major manufacturer of electronics with a good reputation, both at reduced prices but from an authorized dealer. I wound up having trouble with both and was left with the clear impression that I'd bought someone else's problem or lemon. I won't be buying "factory refurbished" again, although of course I may have just had bad luck. For whatever it's worth.
What exactly is "B stock"?
I'm looking at Denon DVD/CD players, and I keep coming across "B stock" merchandise. Would someone who is genuinely knowledgeable about this subject please give a clear, accurate definition of exactly what B stock is, and just how it differs from A stock? (Yes, I have a vague, generalized idea of the difference, but not one I'd want to take to the bank.) Thanks.