People being people they want music. A lot of poeple use their discriminating tastes in other arenas. Some people will spend a lot of their time searching out unique and wonderful clothes as others just head to the discount store and buy three identical pairs of jeans and half a dozen t-shirts so they don't have to think about it. People buy processed cheese because its packaged to be easy to use while others look for stilton, camembert, old cheddar etc.. People buy bad music like they buy cheap clothes or lousy food because they need music.