I have said this before.
Apple can, if they wish just market the Gold watch, heck make it a Platinum one, virtually totally as an advertising piece if they wanted to.
I don't think they will do this as it's not Apple's way, and they are showing them on their web site as if they are aimed at normal current Apple customers.
But they could do.
A few high end celebs wearing the gold one as the money is simply not an issue, and they get that feeling of being special, as general people won't have the gold model. On TV it will be noticed "Oh you have a gold Apple watch" Hence more media focus and attention for Apple.
Again, I don't think this is Apple's way, as I feel it would backfire to the mass buyers who feel they are the lower class who can't be expected to afford one.
At the moment, I still think Apple want to sell the Gold models to normal customers who want to pay more, but not put it unreachable.
Also, as I have said before, if it was Apple's intention to make the gold models very very exclusive, I don't think they would be so much mixed into the general consumers website as if it's just a little option.
I've been thinking for ages $1000 to $1500 for the gold, and after some case calculations and gold prices, if the case is as thick as I think it is, then I'd place the price at the $1500, depending on the Gold in the strap, we could tack on a bit more, but still, we'd be in the $1500 to $2000 bracket, and that COULD be looked upon as a fair price for the materials still.
Unless the case if thicker than I think, then I'd currently suggest over $2000 and you are into 'Pricing over and above value for fashion/profit' reasons.
Also, I could suggest, once you passed this range, you really are stepping outside the zone of many buyers, even ones with money who may then feel, best to wait for the next model before committing.
I could be wrong, but that's where I am today thoughts wise.