At what point might you think that you were spending more than is warranted for the platform? Would you spend as much overall for a NEX system as you would for a DSLR system? I'm thinking about buying another lens (perhaps two) that are on the expensive side and it got me thinking about these questions. When I originally purchased my NEX - now a NEX 6 -- I guess I was thinking of it as a camera that was slightly more expensive than, but a natural evolution from, a P&S, with a sensor capable of DSLR-like image quality. I guess I didn't appreciate what a black hole it might become.