Where have you been able to find them? PCPartPicker hasn't exactly shown great availability on the 3900X so far [0], Amazon is full of scalping [1] and Ebay... Well, $700+ is what I'm seeing there. This is the CPU that'll probably be powering my next build, so if you've got a source close to MSRP I'd love to hear it!
I hope this letter finds you in good health. Since I've seen that you are offering AMD 3900X at a discount, I'd like to inform you that I am not like those pleebs and would therefore like you to pay in full MSRP. Please let me know where I can send the goats.
Funny enough, I had two buyers saying pretty much this. "I'll pay 49" on a £35 item. Why? Because apparently that's "what it's worth". I appreciate the thought, but it just looks insanely suspicious...