I will never, under any circumstances, drink cheap, crappy beer. Anything by Bud, Miller, Coors, Michelob, Corona, PBR, or anything like those.
It's mainly because of the unbearable taste and the nauseous feeling I get in my stomach.
It's also because of what choices those companies make. They are the Walmart of beer. Just like Walmart, they make it clearly obvious that they choose to make their products for as cheap as possible with complete disregard to quality. I believe that these companies function together as a monopsony in this particular market segment, as their buying power dwarfs the remaining market. The more money they make from their drinkers, the more money they spend on eliminating the competition of good beer.
I can't sacrifice ethics to be sociable, and I don't binge drink. I would much rather have water, anyway.