i think bands should always be approachable. i dont think charging money for just an autograph is cool. i understand how some bands will do a thing where a fan can buy a ticket to get early entry, a meet and great, watch them sound check, get a limited edition merch, etc. i dunno...it also depends on the fan. some people are stoked on exclusive things like that and others are stoked to just approach a band member and start chatting. whatever works for you i guess. but i am always approachable and i would never deny someone an autograph or a picture or whatever. fans/people that support this band directly support me and help put food in my mouth and clothes on my back so whatever i can do to thank them i do.