Who exactly are you speaking for when you say they are not attractive? A large part of Microsoft's share is in school/org licenses. Another large one is for the unskilled users of computers. I would very much consider Google as a real competitor for them.
I look at it this way. Chrome notebooks are priced beyond that of PC laptops, they offer no benefit over a PC laptop running Chrome, so why buy one? Further ChromeOs will have limited local storage, and absolutely no native apps. This means no Skype, no local movie player, etc. A buyer would actually be getting less for their money by buying a ChromeOS machine instead of a $350 laptop at BestBuy with Chrome installed.
The form factor for consumption of media, video and news, does not require a keyboard. In fact it does not seem to require much of the laptop form factor at all. The tablet may already be the best solution, time will tell. But ChromeOS is avoiding stepping on Android's toes, and is not expanding in that direction. And that is limiting.
Leasing will only be available for schools, businesses, and governments--entities already in long term contracts with Apple or PC manufacturers. There won't be much penetration in the short term. And when it comes to price comparisons, ChromeOS will not have the support base and personelle which is already built up around PCs.
Lastly Chrome notebooks necessitate a wireless data plan, but as of now no carrier gives unlimited access for a low, flat fee. That means no unlimited Netflix or Hulu. And judging from my experience with a mobile data card, the connection is not stable enough for video streaming anyway, nor voice calls, nor multiplayer gaming.
