The problem is that my 6 year old PowerBook has also 2G of RAM and so does my 3 year old MBP - and I don't want to invest into something which has not improved in that compartment within 6 years while ALL the other ones have. We can have a MBP with up to 8 G of RAM, so limited to 2 is not an option for me currently.
I'm sorry but comparing the Macbook Air to the PowerBook and Macbook Pro is like comparing the Intel Mac Mini to Power Mac Dual G5 and a 2007 Mac Pro . . . its two entirely different computers . . .
Powerbook and Macbook Pro are designed for power users that need to do intensive video and image editing, etc on their laptop, as such if they were to buy a desktop they would get an iMac at the least or more preferable a Mac Pro.
My dad is a professional photographer and he has a Mac Pro, and is looking at getting a Macbook Pro 17 so he can be more mobile.
For me I do basic analog to digital video conversion so the Intel Mac Mini with the EyeTV suite is more than enough for me. I never do that on my laptop, I just watch the content on my laptop so the Macbook Air is a great choice for me because it has what I wanted most, light weight, quiet, and long battery life.
I thought about getting a Mac Pro but that would be some serious overkill for what I do . . . it would be more than just a little ridiculous.
I'm not saying I don't see your point, but I can understand not waiting to get something with memory that can't be expanded, I just don't think you can compare a pro series laptop designed for power and performance to laptop designed for light weight, and long battery life . . .
-iGrant