BonzaiDuck
Lifer
Listen up. You live in a capitalist, cut throat society. Does Newegg employ morals in their rule book? If not, then why are you offering them a handicap in their favor while you both play the same capitalist, cut throat game? Morality is kind of like respect: It goes both ways.
Also, keep it in perspective. If they accidentaly sent you something worth $10, would you bother to send it back? Probably not. Just becsause the value of the CPU is high for normal, working class people like you and I, that doesn't mean the value of that CPU is high to those at Newegg. It is nothing to them and won't be missed.
That said, i'd send it back.
I could respond to this in a way of partial agreement that would have us adjourning to the "news and politics" forum. Dispensing with that, you can't imagine with complete accuracy what they put in database "memo" fields for your account at NewEgg, so if you planned a longer future of doing business with them, you might find it in your self-interest to return the processor.