After experimenting with three different netbooks, (HP Mini 2140, Samsung NB30, Asus Eee 1005HA) over the span of three years, I came to the conclusion that they are all just as useless as the next one. The best thing about netbooks are battery life and portability. Of the three I had, the Samsung performed the best, but it was amazingly slow, even after maxing out the RAM to 2GB. That's how I ended up here, and I will never look back. I ended up buying the MBA a few months ago, and it was the best 800.00 I ever spent on a computer. Trust me, the extra money is worth saving any headaches, take it from a guy who has dabbled more than enough in the PC netbook department.
The MBA outperforms any laptop or desktop I have ever used. Forget the whole PC/Mac argument. I was a hardcore PC user all of my life, and yes, both have their ups and their downs. I never did get the whole Mac until I bought one, and it was an easy adjustment. This thing is a toy, and is the way a computer should be. If you got the money to buy one, do it. You will not regret it. But if you absolutely have to buy a netbook, close your eyes and point to one, because they are all pretty much the same.