duane, I think having two systems is, for now, probably the best way to go - until DSLRs transition into smaller more feature packed devices that can replace a two system setup.
Getting back to the original post of my thoughts about looking at the company behind the system, Thom Hogan has provided some interesting thoughts about this year's Annual Report released by Nikon:
http://www.dslrbodies.com/newsviews/nikons-annual-report.htmlI think the report shows very clearly the lack of nuanced thought going into the usability of their cameras, at least in the low-to-mid range cameras (not including their professional line, for which they probably pull out all stops).
Now, compare that attitude to the innovation going on at Fuji, Olympus, Panasonic, Ricoh, and to some extent, Canon. Thank you, Thom, you have helped to confirm my perception about Nikon and that I don't want to commit thousands to a company that isn't interested in creating products with deeply nuanced feature sets and control systems.
EDIT: Okay, I'm done complaining - I've resolved my conflict over the D750. I wanted all that great tech, but couldn't get past the way it handled and lacked features - fantastic grip, though!