Rock Band Music Downloads

For the past few years, my Rock Band set has seen a lot of action. Every time there was a party, get-together, or just a lazy afternoon with a few friends, we'd break out the kit and rock out to some classic tunes. Downloading from the Rock Band network store was a part of the fun, since you could all filter through and pick your favorite songs to jam to. I've downloaded well over 100 songs over the course of my music gaming career, but can you guess how many songs have been downloaded from the Rock Band marketplace in total?