Music & Business Models

I've been thinking more and more about monetizing music and I have to say that I would much rather continue to pay $14 for a CD then to see the whole industry shift to an advertising model.  Supporting art with ads is depressing and just plain wrong.

I mean how far can this go?

Imagine if museums didn't charge admission?  Instead, you could get in for free but all of the art would be covered in advertising?