Playing an arcade game is the most fun a person can have with a quarter, aside from attempting to rip it in two to impress job interviewers or giving George Washington a tiny makeover. Keep your quarters intact with today’s deal: for $45, you get one admission to the Pacific Pinball Museum’s Pre-Expo Gala at the Marin County Civic Center in San Rafael on September 22 from 6 p.m. to 10 p.m. (a $100 value).

For the first time in Pacific Pinball Exposition history, the staff opens its doors for a private pre-expo gala that offers unlimited play of approximately 400 pinball machines, as well as finger foods and soft drinks. In an uncrowded exhibition hall, gamers can wear down index fingers on vintage, new, and see-through pinball machines, ranging from 1930s machines to 2011 games. In addition, guests receive an exposition poster and one raffle ticket for a chance to win a pinball machine or 10,000 bonus points. All profits benefit the Pacific Pinball Museum, a nonprofit establishment dedicated to teaching pinball’s art, history, and uncanny diplomacy tactics.