It may actually force me to delay my purchase, or to wait for the X that I really need (the heated mirrors, not the power folding ones).
Winters here are no joke, and I will not compromise with features that could put my family in harm's way.
Not seeing adequately behind me when driving in freezing rain is a no-no.
Trying to scrape side mirrors while stopped at a red light is too ludicrous to consider in a car of this price in 2012.
If you ever have to drive in freezing rain, you'll know why this is not a SHOULD, but a MUST.
Mind you I don't want all S owners to have to pay for such a feature, simply that it be offered in a package for those who need it.