Now that I have an MPX I'm looking more closely at the MCX. I'm impressed by the design although I'm generally a mil-spec DI guy. I didn't mind venturing further afield on the 9mm platform as I never seriously consider 9mm ARs anyway (would have gone with an MP5).

I don't know any other company that is investing/risking as much in R&D for the civilian consumer as Sig and the innovation is showing. They've had some issues along the way (gen 1 / 2 w/ MPX), but I'd rather them continue to learn and risk obsoleting themselves then abandoning all development once it's out the door (which we've seen several times from other manufacturers).

It will be a while until I have budget to seriously consider picking up an MCX, but I definitely understand the attraction now.