I learned long ago and far away about buying DRM tracks. I don't care how interesting the tracks are. I won't buy something I can't carry from one computer to another. I don't share tracks but won't tolerate having to pay more than once for a track. Zune pass? Not a chance. Those tracks aren't free. They are only for rent!
In light of recent court action, maybe someone needs to start a class action suite against the music industry, Microsoft and Apple over "selling" tracks for you to "keep".
http://www.computerworlduk.com/manag...m?newsid=16946