My husband doesn't go with me to quilt shows. He will occasionally stop at a quilt show if we're in an area we don't usually travel and I see one. He is incredibly supportive with making/adapting anything I need for quilting, so I'm ok with him not going. I like to indulge myself with as much time as I like viewing the quilts and shopping, without worrying that he's getting bored.
My son (who lives a great distance away) has a great eye for design and likes to figure out how quilts are made/pieced. When I go to Manitoba to see him next, I'm going to see if I can find a quilt show near him to take him to. I think he'd enjoy it.