Rumors of the new color options appeared just a few days after I ordered mine, and I'm certain I would have ordered the slate - but now I actually prefer the silver bezel.
edit: Also from my reading when I was looking at the VA3, the slate can scratch but the steel is all the way down.
Some of the other lines came out with Rose Gold a while after the initial release. (I think Fenix?) So I knew there was a possibility of black/slate coming out later on. But I wanted the features offered in the 645 so dove in anyway. The silver bezel has grown on me now, and I wouldn't trade it in for the slate. But everyone has their own preference. Looks like the Fenix 5+ line is coming out with all the options off the bat (although there may be more down the line). But starting at $700, way above my pay grade! :-)
