How to Hold A Wine Glass

[MsWine]

I'd like to hear opinions on how to hold a wine glass. Pretty basic question, really.

Is it better to ALWAYS hold wine glass by the stem and never touch the bowl because heat from the hand warms the wine? Or is that just a bit of wine snobbery?

A friend and I are debating this question after watching many movies & TV shows (Frasier, for one) where the protaganists are supposedly wine enthusiasts... yet they all clasp wine glasses in their hands like they're holding a baseball -- regardless of the wine they're drinking. Anyone ever notice this??

I'm asking about ordinary consumption -- not wine tastings.

Thanks,
MsWine