yes Jon is right (he always is an i dunno why)
Windows supports ALL sort of mouses this allows ppl to have more choices of a mouse that is comfortable to them:
(appeal,design,MORE BUTTONS OH MY!!,software,FREAKY COLORS OH MY!!, and mabye they like a cheap mouse)
With Mac making its own mouses you get:
less choices,
they can set the price high and u cant do nothing about it,
a more stable hardware dealy-bopper (that's a good thing),
no right clicker!! NOOOOOOOOOOO!!!
100% compatible crappy mouses
this makes Mac like a monopoly