As a Legend, I occasionally play the Paris room for the following reasons. When I do play, I am usually paired against players of similar level/average so it is not just amateurs playing.
-It is a relaxing way to play competively without spending a log of coins.
-I play to use the crap balls I have won in Showdowns, but usually just hit them in the water so I don't screw up my swing with the different distances, spin, and meter speeds.
-I will play Paris when testing out new clubs I have rented.
-Also good practice for the Showdowns which are played in three-hole increments on various courses.