X100 owners....

I'm keeping my X100.

The images it produces are stunning, but there's more to a camera than photos. I like how the X100 is a known quantity-quirky, but predictable. I like the support in Lightroom, DxO Optics, and others for its raw files.

A new camera is a whole new set of quirks, mistakes, and issues to be resolved. Hopefully the issues with the X-Trans sensor get worked out and more developers support it better (hello Adobe...)  but for now this isn't a must-have upgrade for me.