It's nice to see a source for the 65c51's even if they're so slow (1 & 2MHz).
You might need to lower your other prices though, since we can buy current production 65c02's with a richer instruction set, three more signals (memory lock, vector pull, and bus enable), conservatively rated for 14MHz (compared to your 1, 2, and 3MHz), for about the same price from the manufacturer, Western Design Center, with no minimum order. They also have new 14MHz 65c22's for a similar price.
A couple of years ago someone posted on the Delphi 6502 forum that they had 1MHz NMOS 6502's for ten or twenty dollars each, apparently thinking they had a gold mine of antiques whose only value was nostalgia, so they could charge a lot. Actually, about 5.7% of the 8-bit microcontrollers that went into products that year had 65c02 processor cores.
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