I caught a Scorpion Rep out showing the Exo - 1000 to a dealership near my house about 2 months ago. It felt really comfortable and If I could have bought the demo unit, I would have. I think its going to be a decent helmet and as soon as shops actually get the orders in i'm gonna get one. I have a hjc cl-15 now and I hate it. It's a decent helm, but i read earlier in this thread that they had to change pads to a diff size. I had to do the same thing from L to XS pads and it still gets loose. i hear scorpions dont have that problem. Plus the inflatable check is an innovative feature. I also like the lip down sun visor inside. Should save me from having to wear shades or get a tinted visor.
I dont really like the Cost vs Protection conversation. Mainly because I dont have anything informative to add. But I figure as long as your wearing a lid that has a DOT/Snell approval better than that years requirements, you should be golden. Like with anything else in life, You pay for name, accessories, and innovation.
I found this article on a thread from 600RR.net
Motorcycle Helmet Design, Helmet Standards and Head Protection - Gear Box - Motorcyclist Online
Good(long) read