You probably will noticed, arcade is the ONE and ONLY facility that is functional among all the furniture. (of course, except tables and chair) Customer can spend time there, stay there and play. So.. whats special about it??
While you are getting higher popularity, more people will come to your restaurant. However there are limited cooks and waiters, as well as tables and chairs. Arcade is the only way to keep the customer from dissatisfaction. People will automatically go to the arcade and play while there is no more seat and table. This is the best way to keep your popularity at the maximum in higher level. So, don't spend money on other furniture!!!
However, arcade don't gain any money...
