1) After years of C++ in games, I've written a lot of JS. I believe in where the language is going and I saw an opportunity to use JS to write a cross platform 2-D game engine with low overhead and went for it
2) Unity lends itself very well to 3D games in my experience, or 3-D games with a fixed camera to look 2D. So this would likely lead to overhead involving "Well, let's just render the 2-d components in 3-d" which easily spirals into needing a modeler, a rigger, an animator, a concept artist and a programmer MINIMUM to run the game. As it stands now I need a 2-D artist and a single dev.
Oh, I lied:
3) I can't create a business as easily marketing a unity mod than marketing a stand alone FOCUSED engine on one type of game. But if my plan fails, I can still write a unity renderer for my game since most of my logic is serverside and platform agnostic. So who knows! :)
