iTunes Match brings its own issues to the party. I've had songs that I own, with 'explicit content', that I've hand-ripped, converted into radio friendly abominations that are, frankly, unlistenable. Maybe that's just Apple's 'family-friendly' values shining through; that might be appropriate for some, but I don't have a Big Brother in real life, and I don't want one messing with my music collection either!