Up here in Montana, we don't get newer (yes, 2006 would be considered new here) quarters, so I haven't seen many, but looks like they over used those dies. While not much added value, still cool to see and keep. Thanks for the post.
@Shinyjack Nice example of a later stage die. Note that you will most always see die cracks or chips on Philadelphia coins before you will see them on Denver coins. Philly uses their dies to the bitter end before replacing. Denver seems to take more pride in their work and have a better quality control system.
