The "time-out" feature
inherent in the subscription model, is exactly what consumers are against. They want to OWN the music they think they are buying, and transfer it to whatever device they like. APPLE, with a few limitations, has given the public what they desire. Now, if publishers and writers as well as the labels can agree on a macro model based on the APPLE experiment, in time the downloading of music for sale via the internet may have a chance for success.
MSFT, and their tight DRM subscription-based model with clocks, bells and whistles to alert the distributors of "violations" in an imperious system of control, will not win friends among those who account for the largest segment of music buyers.