I love getting a gig poster. I'll even try to get the band/artists to sign it if I can. I remember going into a fish and chip shop once and seeing a Charlie Musselwhite poster hanging on the wall. I asked them for it and the owner said 'is that to have here or take away', ha ha, nah, they were only to happy to give it to me.
I found this great website called www.gigposters.com which has many awesome gig posters. Some of the art work is totally cool. Heres a few Blues ones I found plus a few favs of mine.