You cut the value by at least 30% on the large socket boards. Early NB BGAs are quite valuable and thats why the large socket boards are worth so much, that and the socket's silver solder. Keep in mind it's not the chip value it's the cost to refine a board versus the return, so if you devalue a board you cut the margins disproportionately. For instance, if the COST is $1.00 per lb and the paying price is 3.00 lb making real board value 4.00 lb, by devaluing it 30% you've actually devalued it more like 45% because now the board is much closer to the refining margin.
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