Doesn't sound to good, I mean, I doubt Amazon cars why people come from, just as long as the come. But Apple is happy.
I don't think its all about DRM free media, because CD were that a long time ago. People want that seemlessness of iTunes+iPod, Zune+ZuneMarket Place, its nice a quick that way. Personally I love DRM free stuff, but iTunes Plus is decent for me.....I used Amazon a little, and it was pretty easy, but there was that extra step(not a big deal for me, but some users might not like it)
Plus Amazon's video doesn't play on the iPod or Zune...soo that type of media people will need to look else where.