Hmm, some perspective... cost of Family Guy season 8 HD and Modern Family season 1 HD on Zune MP (similarly priced to itunes)
= $129
Cost of bluray = does it exist?
Cost of usenet account = $11/mo (ex. Astraweb)
I mean I am supportive of their distribution methods, but the DRM and price are not worth it. Even if it was worth it, I couldn't really afford it. What you're essentially paying for with Usenet is convenience, the convenience of maxing out your DL speed, the convenience of not uploading, the convenience of being able to find everything you're looking for without scouring forums and getting into private sites.
Certainly, if you have the money and prefer getting your media locked into limited devices/programs, then iTunes is perfect for you.