The hobby game industry is very accessible: Go to the right convention and you get to talk shop with people with decades of experience printing and marketing games. Just two weeks ago I was talking to industry bigwigs about the changes that came to US publishing as part of Asmodee's purchasing spree of very different game studios. The kind of shop talk that describes the different choices you need when making a Fantasy Flight game, a Catan game or the first printing of Codenames are exactly the kind of thing you guys needed to know in advance.
Also, why did you decide to kickstart yourselves, as opposed to talk to a publisher?