How many hours per week have you personally had to put into sales, management, and support? $2500/mo would look great if the answer is “barely any”, less so if the answer is “basically a full time job”. Where are you on that spectrum?
Sales and management has varied a lot as I’ve got more and less interested in the project, but a few hours a week.
I’ve been working full time somewhere else whilst building this.
As with any side project it’s been as much about learning (SEO, marketing, customer development) as the financial returns!