The Amazon MP3 Store offers downloads of Metallica's Metallica MP3 Album for $2.99. That's the best price we could find for this 12-track, DRM-free metal album, released in 1991. (iTunes charges $9.99) Amazon MP3 Downloader is required.

Of note, Twitter users can claim a $2 Amazon MP3 Store Credit via this deal. If you've not already used it, it's valid with the above offer, which brings it down to 99 cents.