Hahaha, Brian, I totally understand you. I used to use Nikon Df. Nikon makes great bodies as Canon makes great lens.
I currently use Canon for its video and high quality zoom lens. There are places I find swapping lens difficult. Other than that there is nothing really keeping me from giving it up.
I have feeling that M9 and M240 have something special in them (how they render color). I have obtained many M10 samples including those from a friend. I think M10 is rather modern and in line with other mainstream cameras, lacking that magical charm of M9/M240. I could be wrong.