Let me start by saying that 3d is just a hobby for me. My bread-n-butter is in the world of Flash and UI design, but here is my opinion anyhow. 
I’m not sure there is a need to re-invent the wheel. There are tons of modeling packages out there (modo, silo, hexagon, amapi, and others). Unless EI brings a core modeling toolset into EI, then I’m not sure if its worth the money to produce a modeler just for the EI users. I would like to see EIM running as a UB app, so maybe fix the existing bugs, make it rock solid as possible, but spend the development time on EI and making sure it works with as many apps as possible and extend the API so plugin developers can continue to add great things like Swage, Braider, cloth, and dynamics, etc.
