As a mobile worker, I slathered over the original Macbook Air however it simply was not attractive enough considering the recent launch of Netbooks from Asus and Acer. I found netbooks to be so much more cost effective without losing any of the functionality I needed. The fact that I am a confirmed PC user also helped. Since then I have gone from the original EeePC900 through the MSI Wind, on to the absolute lovely (and very Air ‘like) EeePC 1008 and now running with a workhorse Asus UL30A.
Now with the new Macbook Air 11.6” and 13.3” models, Apple has reignited my desire. Well initially it did, but since then I have had a more considered set of thoughts (maybe it had something to do with the fact that I was enjoying a couple of jars in my roaming local whilst reading the tweets and web from the ‘Back to the Mac’ event).
Firstly the use of Flash SSD for mass storage is something that I can get excited about but its utility is extremely limited as I do not suffer from disk failures (in fact my most recent disk failure was an SSD on the original EeePC701) and find that having more storage that is slower is better than having less storage that is quicker. I struggle now whenever I have less than 250GB mainly due to the utility of having all my files with me and ubiquitous file sync.
Secondly the battery life, something that is one of the most important (if not THE most important) capabilities of a laptop. The new Air’s have battery lives of 5 hours and 7 hours respectively, something that is quite respectable and I understand that Apple normally hits the nail on the head with their lifetimes. These may seem good and they are compared to my old Asus 1008 which could get 4 hours, but not when it is compared to my Asus UL30 – a machine that I get a real 10 hours out of. The new Airs will not get me through a working day without a charge, my Asus will.
Thirdly and finally, size/weight… once you get below a certain size and weight I believe there is a law of diminishing returns, and the extra thin and light Macbook Airs do not offer much advantage over my existing crop of machines. It is enough to be light and small, they do not have to be wafer thin and ultra-light.
The final point I have is also an important one… Apple have priced these machines well … for Apple Macs. However, I still bought both my Asus machines for the price of just one Air (the lowest cost one at that). I have the best of both worlds – the ultra light Asus Seashell 1008 (with 2GB of RAM) and the fuller body Asus UL30 (with 4GB RAM) without any premium being paid (and with both of them running Windows 7 Home Premium at that).
I also do not have to pay £21 for proprietary DisplayPort to VGA adapter, or however much it is for an Ethernet adapter… these come built-in to my little machines 
I can suggest that you also look at alternatives, and Crunchgear have some for you to look through… there is even a higher spec variant of my Asus UL30 in the list!