When ordering my PowerBook, I decided I might want to get an external mouse for my laptop. I saw the Apple Mouse, then I saw the price of $49. I know there's the Apple quality thing, but is paying $49 really worth it for a one-button optical mouse? I mean, I can get a Memorex optical scroll mouse for $11.99 at CompUSA. Is there any reason why an Apple mouse should be purchased above a third-party, and is it really worth the extra $37.01?