Ultrabooks

Ok I may sound dumb here but why are ultrabooks so overpriced (Yes I know it's supposed to compete with the Air)? I mean they've got half the power, they've got crappy batteries (Other than the Folio 13) and most of them look like the Air (other than the Lenovo). All laptop producing companies have now ditched netbooks for these, which I think is stupid, are these really selling as well as Netbooks, because I've never seen one with one. I'm sorry I sound like such a troll but this is MY opinion.