That's true for a while, but companies churn a lot as new things come about. I can't even tell you how many travel/HR, ticketing, chat, and video conferencing

That's true for a while, but companies churn a lot as new things come about. I can't even tell you how many travel/HR, ticketing, chat, and video conferencing systems my rather boring company has gone through in my tenure. More importantly, new customer acquisition. At 500 a pop, someone like me could be inclined to give it a go, and I'm just one not-so-motivated guy. That's great passive income with a handful of customers. For 50? Not worth the effort since now I'd need a handful x 10. At 500 a pop, companies with way more resources will outpace and outspend you for that. Less likely for 50. Just my opinion. * To be clear, the above is a hypothetical. I have zero interest in copying anyone's work, or really any side project at the moment.