You're right
Its the Wii of notebooks!
PharmD, ou may be on to something. Obviously this is the slowest of any Intel Mac being sold right now (even mac Mini has a a faster CPU and HDD). But lightness and super thin profile is grabbing a lot of people.
You have pick one of these things to understand why it is so appealing. It's extremely well build, especially for a 1.0 version. You may quibble about expandability, but this is not the proposition for this item.
I bought my MBP a few months ago so I'm not in the market for this, but for the exception of 3D animation and rendering and heavy Photoshop use, this baby can handle any program you can dish at it.
Coming back to the expandability, the optical drive is overrated. I've only used the drive in my MBP about 2-3 times since I'v bought it (and mostly when I was loading the apps at the beginning. Most of my video watching come from iTunes or videos I've downloaded.
Ethernet? I've stayed in Holiday Inns, Hilton's and other other smaller hotels and for the exception of 1 hotel in Malaysia (a 1-nighter because I couldn't get a better one), all had wi-fi connections and could connect easily.
My big problem with this laptop is that it doesn't have either integrated 3G capability or an Express card. The MBA is supposed to be about wireless (henceforth the "Air" moniker) and it's inclusion would've made it a perfect road warrior notebook (Apple claims that they wanted the user to have choice, but with only 1 USB, the choices are underwhelming)
In any case, I'm glad that the MBA is selling well, because that'll mean that version 2.0 will become a reality much sooner.