Will Watermarks replace DRM and will that be a good thing?

Interesting article/blog in Wired Magazine about watermarks and how they might be used on future releases. The labels might be able to track us as never before and what we do with the songs and/or track our personal data to send specialized ads to us. The former is worrisome about invasion of privacy issues while the later might be a slight improvement over the torrent of useless ads we usually have to wade through (or make us beholden to even more ads).