Be careful about getting any "official roster" signature pieces. Ive got like three that look, well... Just silly now.
I've learned to get the core artists on one item, and the "not so sures" on another. Shit I've had people sign merch that I'm not even a fan of, just to get a piece with the whole label that just look silly now. I still dig my all Deuce Klik (rappers) signed copy of B-G Bulletwounds G-14. BG didnt sign it but its his CD so I like to pretend its complete.