His kids are probably Star Wars-fans and you know that you have to please the kids during Halloween. 
More often than not there is a combo of spooky shit and the kids favorite interests (Spiderman, Star Wars, My Hero Academia etc)
My wife and I don't have kids. We chose to rescue older yorkies that have been abandoned. I got the star wars animatronics because they are new and I was a big star wars fan when I was a kid. Just the original trilogy. The new stuff is crap. Plus no one else has these in their halloween setup. I was going for a movie theme with Jaws, Star Wars, Wizard of oz, etc with other things sprinkled in. My wife doesn't want me to make everything scary, so I put in some kiddie things. Especially by the door where she will hand out candy. I think of Halloween as an Adult holiday. Kids have Christmas. We get over 3000 people on Halloween night, and we count the kids which is around 800.