I would certainly buy this. Saving up for it right now! Should be a nice jump from my 560Ti.
One thing I don't get about this stuff is the cooler - I see the word "vapour chamber" used on these higher end cards, what's that all about? Is it in the 670? Because I see for example the GTX 680 and it has some small looking fan thing on the end of it, which considering when I look at my GTX 560Ti and see its two huge ass custom fans, doesn't look like enough to do the job. Especially since my idle temps with this custom cooler are 32 degrees and load can reach up to 80 degrees.
So what's the deal with these coolers? I always thought the stock cooler looks super crap on these high end cards. But then I thought there must be something else to it, because they can't possibly just be a tiny fan, that wouldn't even do the job!