Get 30 free songs from iTMS

I saw this offer pop up on iTMS today — buy an Airport Express and receive a certificate for 30 free songs on iTMS.  Initially I thought that I was actually going to be prompted to purchase the Airport Express through the iTMS commerce engine, but when I clicked the link, I was redirected to this website.  If you were looking at purchasing an Airport Express anyway, no reason not to take the 30 songs (who knows, you might be able to re-gift the 30 free song certificate).