The same argument applies to DRM and piracy. DRM only disadvantages people who want to consume content legally. Only one person has to bypass it (be it through cryptographic or software failings or the good old fashioned analog hole ala telesync) then upload the resulting unencumbered media file to a piracy site. As a result, it's not just cheaper, but also easier and more reliable to steal media than it is to buy it…
It gets deleted, I move on with life.
But man the experiences in branded players really sucks, and I wish it were better.