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!
Don’t know what to tell you but margins like mine are still incredible for most service companies. A quick search for stats will show you margins are not that high for majority of industries. But kudos to you with whatever industry your biz is in to generate better margins, sounds like a great one.