Because they're freely and conveniently available for download at no cost to me...i have ZERO incentive to buy albums...mp3s are my preferred method of listening to music and have been for quite some time, so physical discs are nothing but clutter...i wouldn't even go to the store and get a copy of somebody's album on CD if they were giving it away for free...and as far as digital media goes, I'll NEVER pay for it unless I have no convenient way of obtaining it for free...buying music nowadays is almost purely a sentimental act for me...and I don't give enough of a fukk about the idea of my $12.99 getting broke down so that the artists and producers get how many fractions of a penny they get from my money as a reward to go through with the whole charade of the whole thing...