Nice try, Apple, but I neglected the songs I did because I don't want them. Just because they're cheaper or available for a limited time only doesn't make them more appealing. I'm going to guess that the record companies are behind this "feature" and not Apple, as the latter have always promoted single-track purchases, and the former have not.
*If you're seeing this outside the US, let us know.
[Via Infinite Loop]
UPDATE: Thanks for all your comments, everyone!
I won't be using the service, but if you will, great! I interpreted it as Apple prompting me to purchase music that I don't want.
I see how it can be convenient for many users, and a money saver to boot. Tow-MAY-toh, tow-MAH-tow. If "Complete My Album" lets you supplement your collection at a discount, than you can't argue with that.