My personal opinion is that Virgo's are such rational creatures that they see their time as being precious, limited packets of energy, and socializing is an inefficient use of this resource :p (Any Virgos care to comment?) I find it cute (in the women). Pisces sees Time in a more Multidimensional way.
I absolutely DO NOT fit in this category but I don't think I'm the typical V. guy. Leo Ascending and Gem Moon dominating from what my astro-junky friend mentioned. I'd say I'm more picky about who I choose to socialize with. You either have the X or you don't.