Does renting out ping-pong tables for a specific amount and a limited period fall under the category of extravagance, unlawful amusement, and wasting time?

Table tennis is permissible if it does not distract one from a religious or worldly duty, nor is it associated with anything forbidden. It is permissible to open a hall for it and rent out its tables for a known fee, and the earnings from it are lawful. Wasting time and extravagance in this game depends on the players; whoever is excessive in it is negligent and wasteful, and whoever plays it in moderation incurs no sin. The hall owner must prevent forbidden acts, such as music, and close the hall during prayer times.