@ Jeff and Kerry
Sure hoping they release ISOs. Much easier for everyone all the way around!
Same here on dual boot. I'm sure you know, but the whole idea of a preview is collection of data similar to CEIP. Not sure if one can opt out of that with preview. If so, then one doesn't "vote" on final release. The more we use it and the way we use it is like voting on what the final release will be.
Of course there will be a surge of use of the preview period, but as time goes on the more or the less of use will reveal the amount of interest. Then there's the way we use it. e.g. Start Screen vs Start Menu, or both, if, of course that's if it's an option. If we use more desktop or Modern is another, etc.
I've always opted in the CEIP or similar if another product no matter what it is. I think "voting" is important. If we don't then we lose the power to change things and the right to evaluate, perhaps in the form of ranting.