"Special" decor sometimes goes the way of the dodo with new owners.
When I was about 12, my parents allowed me to select the carpeting for my room in our new home. I chose two-inch, dark purple shag.
Years later, mom and dad were only able to sell the house on condition that they replace the carpet in my bedroom with something remotely normal.
On the flip side, when I sold my condo, the new owners were thrilled with the big jungle mural (painted by my very talented mom) in the guest room.
In the case of the Star Wars room, it's quite possible it will not survive a sale intact. It's a bit....
much.