Microsoft tried this, and had to walk quickly backwards when faced with angry dupes. Now, Yahoo are announcing the switch off of their DRM servers, rendering paid-for music suddenly useless. Unless you never upgrade your computer again. Or suffer a crash. Ars Technica is not impressed:
Why would Yahoo have taken this step knowing it made Microsoft look even shabbier when they tried it? Are things so tough at company that they can't afford to leave the server switched on for a few more years?