Been in the photo booth industry for nearly 10 years and generate $400k annually (set to do over half a mil by 2024) in the wedding and events space. I don’t feel like I am the expert by any means in business or entrepreneurship, but I’ve built a couple successful companies on a small scale, and have an MBA, so maybe I can contribute to your success. AMA!
Chance (found one at a holiday party and decided I could do it better).
Probably after first three years I started to scale team/equipment. Basically once we received enough leads asking for the same conflicting date. Then scaled back, and found ways to leverage partnerships in industry to be bigger, without managing a larger team or needing a bunch of inventory.