>Additionally it is difficult to get resellers excited about supporting and selling software at this price because they don't get much of a margin on it.

Well is a fact that MoI has a very small user base, also I don't think resellers will change that, bare in mind they will still promote Autodesk, Dassault... products, the reason more profit for them.
There are better ways to promote a product, a) publications ( you been doing well up to now but you need to push more towards design blogs etc.). b)The Education Sector (Promote you product to Design Universities that will generate sales few year later).

From personal experience publications generate hype and sales not the resellers...IMO.