I try to get all things horror related signed by my favorite actors, directors etc. I have a VHS, Laser Disc and the ultimate DVD set of Dawn of the Dead signed by the cast (including Savini) and Romero. I have the first TWD omnibus signed by Kirkman, Moore and Adlard. Few other films like Evil Dead, Halloween, Nightmare and Friday the 13th signed by Bruce, Sam, John etc.
I don't pay ridiculous con prices though. If i see one at a con for reasonable price i will snag the autograph but if they want $40,50+ i laugh and walk away. It's why i don't have Carl from TWD autograph on my S2 zombie head because he wants $50. I got Rick, Daryl and Merle under $50. Why the fuck would i pay that little shit $50?