"So, you need to pare down your problem space/feature set to the absolute minimum that provides real value to people."

This is very useful advice, it's a good rule to have in mind. I'm actually doing development, but I don't do active promotion of that as I can only do one project at a time, and projects tend to go for months. But as I keep developing on projects, I keep very focused on them and only a little consultancy work and some basic business meetings, sales, etc keep me out of full focus on dev. But I don't think I'm in the minimum yet, so I'll really think in what you said.

I also agree with you in prefering the "given this problem, I need more people" angle, for growing the company.

Thanks a lot for your useful and very interesting! advice, and good luck with your new project!