Ask HN: What is the demand like for wireframing skills (e.g. Balsamiq)?

I'm thinking of learning how to use it in order to document my project ideas better than a list of descriptions. I've been exploring of offering my skills with Balsamiq as a service for perhaps other aspiring entrepreneurs or business owners who want to launch a new product. However, I have no idea whether people would want to pay money to someone taking care of this for them. What are your thoughts as a Hacker News community member, especially at the forefront as early adopters?

Thanks in advance!