Well, I actually like the subscription model.
Let me explain why:
I download many single tracks from many different albums. If I had to pay for all those cd's, it would be a waste for the 1 or 2 songs I actually want to hear. Also, I don't have to worry about losing them / cd getting scratched. I can re-download my entire collection with one click.
Also, the Zune has some neat features. How about downloading songs over wi-fi hotspots, without being tethered to a computer? Decent games, and prolly more to come.
I'm not trying to convert anyone into a Zune fan, just saying I like mine and get alot out of the service.
BTW, all the Zune's are working now. That was just a one day bug (at least till the next leap year)