Its pretty fucking cool dude. I dont know how much they are though. Why dont you just go to your local shop and ask if you can try one out for a sec. Thats what i did and the guy just took me outside with me and taught me how to do it
i ride ^ that kids on occasion
its really cool, but definitly tough to figure out
certainly not something your gonna get and go bomb hills on
it takes some dedication, i havnt really gotten it yet, but its pretty sick
they are amazing. my friend bought one and couldnt figure it out so i took it. I love it, its wicked cool to be bombing a hill in complete control and be able to spin 1's and 3's in front of people
they're like longboards only the front and back trucks are raised and theres one wheel behind each truck that swivles 360 degrees. Since the trucks are raised you're always on one edge of the board like your snowboarding.
It's basically snowboarding on pavement. and they have these weird metal bindings.