After trading to get a GXR, it just wasn't the rangefinder experience I was after so sold it. Well it turns out that little camera packs a punch - and it is great to use. Was lucky enough to find another recently and snagged it immediately. It arrives tomorrow.
I briefly consider getting the new Sony A7r, but for that money, the best lenses on it are not the M mount ones I already own. The high ISO though is hard to beat and it has a larger megapixel full frame sensor. But the GXR is good enough and at the price I snagged the kit for, I'm excited to be shooting with it again.
Stay tuned for photos and post your own "buy back" stories.