I was going to open my own arcade up, but decided against it. I was able to put some games around town at a local brewery and a couple other locations. That way I could start small and get used to routing games and maintenance.
I have a friend who owns a free play arcade. His numbers have been 30-40% compared to 1 year ago. He would have 150 a day, now 50. I don’t want to keep you from your dream, but it will take more time and money than you anticipate. If you have the time, money and passion, go for it.