I've worked on something for four years, then went to market it and saw that it had already existed for a decade. But, of course, I already knew that I was not

I've worked on something for four years, then went to market it and saw that it had already existed for a decade. But, of course, I already knew that I was not unique. The reason I spent so much time on it is because I have a small but active community of users who like it very much. I am not confident I can monetize it (it's a chatboard service), so I may ditch my "chatboard as a service" plans, but I will continue to work on it. Maybe I should forge ahead with the CaaS plan anyway, just to see if I can get any takers? A handful of paying customers would be better than none, after all.