I am very jealous of the above material, especially the Mastodon and Ozzy related memorabilia.
My biggest regreat was not sticking around after seeing Mastodon/Kylesa/Intronaut. According to the whole tour, 20 minutes after the equipment was off stage, all 4 guys came out and hung out with crowd. I left about 10 minutes after realizing that I couldn't get Brann's setlist which was taped to his drum carpet.
Also LOVE the Vinnie Paul and Gene Hoglan autographs, 2 of my biggest inspirations behind the drums.