Heh! I love this part:
... it dropped the build price of the mouse to a level where every consumer could afford to buy one.
Let's see, the 4 button mouse--with wheel--that I use now cost me $50 -- and that INCLUDED the ergonomic keyboard!! (And that was about 4 years ago. Probably cheaper now.)
Funny how things that made sense almost 30 years ago don't so much now.
(I agree with you about the extra buttons...two is perfect. The wheel is nice. I turned off the other two.)