I think in few month blender will be a good engine wait for the ogre plugin
cause the game engine use to shutdown

dont be rush with blender cause it's an open source and for that reason it need more efforr so try some game on blenderartist you will see
it's better advice icould give you
cause even some effect are impressive and the physic with bullet seems amazing i didn't see a real game in fact and that's the problem

I hope there will have some improvement cause game making is expensive and spend 1000 usd on it It's a bit harsh