I agree with Harold. Also, to address the hairline and spiral vertex point...
Exactly. This is a very important point, how can they just apply to say the temples and expect the hair to grow on the right angle? Will it be the same texture? So many questions. its not like you can just slap it on the crown either because, the crown has a spiral shape to it which is very hard to replicate. Takes the worlds most talented surgeons to do this. I suspect they will grow the hair in some nuetral zone first, then use FUE and allow a talented surgeon to apply it as it was.
... a perfect hairline is definitely a rare site, and it almost does look kind of funny. It's like it is almost TOO perfect when you see one, and you can tell whether it is natural or a wig or something. I mean, my old boss was italian, and he has a perfect hairline, probably unchanged since his 20s, and he wears his hair spiked up, since that's how it grows naturally. You can tell it is just a damn awesome hairline, nothing more, nothing less. But my opinion is so what if it looks perfect after the dermabrasion procedure, as long as it isn't TOO low. If it comes out looking like a 20-yr-old hairline, I'd take it! 15 might be a bit much.=) But they can control that with the dermabrasion. The dermabrasion laser comes in a variety of diameters, and they can be as small is a pencil eraser, so they can probably make the hairline somewhat staggered, rather than a straight line.
And on the point of hte vertex, my vertex isn't centered on the crown, but rather it is on the side of my head, which is why I wear my part on the side, too. And my hairs doen't grow outward from it, they grow upward, and I have managed with it growing like that. So as long as we have a lot of thick hair, the direction isn't a huge issue, and we can use gel to style it and make it go where we want it to.
Good questions/points, though.