A bad theme can be overcome by a really good game. I have BSD and XM. I would never have bought them if they weren't fantastic games. I would consider an IMDN, which I wouldn't normally be interested in.
I also own a SW. It would probably be out the door if it didn't have a great theme. So a great (integrated) theme can help boost a game.
I'm also currently resisting the urge to put my name in on Rick and Morty without seeing anything first. Pinball is weird.