[edblarney]

I would urge caution in the assumption that 'being able to build a product' is the same thing as selling it.

Moreover, there are tons of little nuances and specific things that go into making a 'great product for the niche' and that knowledge is domain specific and can take a lot of time to learn.

This is without even considering the fact this person, having worked in the industry can probably speak with a lot of credibility on the issue to customers, and hone in on specific deficiencies, likely has a long contact list of potential clients buyers and a strong network - these things are valuable.