why do people think beer is better if it comes from somewhere else?

at the restaurant where i work we carry a few beers from spain and south america that are not very well known.  they are just regular, simple, generic beers.  when i am asked about them, if i say they are like stella people sometimes buy them, but if i say they are like budweiser, nobody ever does.  this makes no sense to me.  domestic beer costs less because you don't have to pay to have it shipped from somewhere else, not because it's worse.  my guess is if you go to europe everybody thinks miller is fancy and heineken is cheap. 



and you know what the really funny part of this is?   bud, stella, and a million other beers are all part of the same giant company anyway:   http://en.wikipedia.org/wiki/InBev_brands