I once had a boss who refused to buy the programmers Pentium machines and made us use 486s instead. He said it wasn't because he was cheap, but it was so that if we wrote code that ran really fast on a 486, just think how fast it will run on a Pentium. Nevermind that none of the new Pentium features, like SIMD, could be taken advantage of.

That company is no longer in business.