Nearly 40 years ago, I purchased a pachinko machine as a gift for my father. The Nishijin Type A game was perfect for home use because it recirculated losing balls into the reward storage tray. My father seldom needed to refill the supply tray with discharged balls.
My wall mounted Mizuho pachinko machine looked great, but would frequently exhaust its ball supply during heavy play. Then I had to walk down the hall, open a closet, and transfer used balls back to the supply tray atop the game. Now a motorized pachinko ball lifter keeps that pachinko machine supplied with balls.