Over the years, I have bought many CDs (tho not in the past 10 years), DVDs (tho not in the past 3 years), and other entertainment media. At the moment I do not. Part of the reason is lack of income. The rest is this:
Entertainment IP owners have bought legislation through their lobbyists, campaign donations, and other means to extend copyright from it's originally-intended 14 years to ridiculous levels. Productions were originally meant to become part of the public domain after that time, and instead every time the first Mickey Mouse cartoons threaten to become public domain, Disney lobbies congress to extend all copyrights another 20 years. So while I agree that copyrights grant legal ownership of IP, I believe the companies do not deserve those extended protections, so MORLALLY I feel no guilt in "stealing" their work.
I also do not like how the media companies like to play both sides of the object/license debate, favoring whichever suits them at the time. Sometimes your music/movie is an object -- if you want it on a different medium, or damage your copy, or something else, you must pay to replace it. Other times, it's a license -- you may not "perform" (play) it in a public / commercial setting, you cannot sell your CD to a record store for resale because it's a "license" not an object, etc.
Further, there has been ample evidence of industry collusion, price fixing, price gouging and other unfair business practices among the record companies, which makes me even less inclined to want to support them. And again, rather than penalize them, when they are caught, our (paid off by campaign contributions and promises of future BoD positions) government representatives see fit to "settle" with a voucher program instead of demanding fines or payment checks.
These reasons, and the fact that I just don't listen to music like I used to when I was younger all contribute ot the fact that I do not buy any music anymore. And I don't feel any moral obligation to pay for it on the rare occasions I do download a song. I know technically I should pay for it, and recognize it's the right thing to do, but I feel that the owners of this media have done so much to screw me that I feel it's only proper I return the favor.