On initial consideration, some might say no. Alcohol and dairy conjures up images of dipsomaniacs swilling Scotch and milk (with apologies to dipsomaniacs who do not imbibe this mixture, non-dipsomaniacs who do, and Joyce Randolph). Of the White Russian, David Wondrich, drinks correspondent for Esquire, says in the NYT's article, “'When I first encountered it in the 1970s, the White Russian was something real alcoholics drank, or beginners.'”
Wholesale condemnation of the drinks-and-dairy combination should be avoided, however. Eggnog, for example, spiked with a bit of brandy or whiskey, is a fun holiday treat (and according to Wikipeida, a excellent source of magnesium).
Perhaps a drink like eggnog, or a White Russian, simply requires the right context. It's not for every day, or for drinking at the bowling alley (unless you are either a character in a movie or between the age of 21 and 32). But late in the evening, lingering after dinner and enjoying a fabulous view of a city or the ocean, a celebratory round of a sweet drink like Kahlua and cream may just suit perfectly.
Cheers!
Another wrinkle from dairy products: Who wants bovine growth hormone in their holiday drink? Not I. This brand of eggnog is rBST free. 
