Buying unencumbered music like I do is what the industry is slowly, painfully moving towards.
EMI have taken their baby steps on iTunes. The rest will surely, reluctantly, awkwardly follow.
I don't buy the MS analogy. MS obtained and abused their monopoly position by actively excluding competitors from the marketplace. The major labels are completely powerless to stop eMusic from selling me indie music without DRM. MS could indeed stop PC manufacturers selling me OS/2.