For me the point is that the penalty (the next morning) is small to non-existent with Vodka as opposed to other types of alcohol. ^
I'm partial to Grey Goose myself but will have to try some of the others mentioned. I'm a lightweight 1 - 2 drinks of any sort is my limit but I can drink a couple of Vodka Gimlets (fresh lime juice only please!) and feel fine the next day but a couple of glasses of even very fine wine will often make me pay the next day. My husband says one of the reasons he married me because I am such a cheap date...
So on a sideline... how do most of you drink your cheap (or expensive) vodka??