I'm glad they finally updated the site to show the picks are stamps. I got them some years ago with a CD and knew the picks were not authentic signatures. I would never have purchased back then had I known. They also signed the front cover of the CD case (I got the christmas one and it's a very thick case) $20 for the photo is a deal.
It's the picks offered in their store. When I made a purchase a few years back they were advertised as signed, which they were not. The listing for them now shows stamped. Every other item should be fine.