From Microprocessor Report, by Nick Tredennick

May 29, 1991 - Intel now makes three different parts using essentially the same 486 die: the full-function 486DX ($588), the 486SX with the floating-point unit disabled ($258), and the full-function 487SX [an upgrade to the 486SX] ($799). Has Intel finally done it? Have they finally gone too far with their blatantly avaricious and trasnparent scheme?

The answer was obviously no. In fact, the 486SX was a big success