Just got back from work, had some hands on with the Ivy 13z after I saw you were considering it.
It does have quite a bit of flex, because the chassis is plastic, with some other annoyances. It's pretty hefty, but dense, so it feels solid.
As I predicted earlier, the panel is garbage, but the pixel density is an upside. The bottom line though is that this costs $400, has an Ivy i3, and slim, sleek lines.
I do suggest that you go to Costco first, and check out their deals. I work at the biggest Costco in my state, and we have about 30 laptops, most budget machines, that go on Mfg's rebate all the time (or at least whenever we need to sell more
). Please give the sales associate some clue that you know what you want and you know what you're talking about. They can show you around better. I know you said you wanted a new laptop, but display units go for cheap, especially with Haswell around the corner. Test the chassis for creaks and gaps and scratches. Try to convince them you either need 10%+ off or a free extended warranty. Unfortunately, at the end of your trip, they won't be too happy that you just walked off with a $600 laptop at half price with a lifetime warranty