Is this to supplement your desktop while you're away from home?
Is this for school?
What's it for?
Ultimately you are the one who decides if it works for you or not. Yeah, $400 may have been steep, but whatever.
I was thinking about getting one a few months back. It would have been for work, and it would have done everything I needed when away from my office (actually a BIG plus in my line of work). The smaller the better as long as it ran windows. It would have made perfect sense for me and my needs, but then my fiance went and got me a Vaio for xmas. /pfft
These aren't bad machines, it just depends on what you need it for.