I'M also with you on the storage issue. My installation is a little thinner at around 80 to 90 GB so a 128 GB SSD is too small. Especially when I carry my iTunes library on a second harddrive. Due to large transient files a 200GB drive barelly covers my needs.
In the case of the 11" AIR the problem is truly artificial as the 13" machine uses the same card format from what I can see. Apple is really missing the boat here with respect to storage.
I dont get this line of thinking at all. Who would by a ultra-portable and expect it to have massive internal storage that is found in a notebook or desktop HDD.
As for your comment that these limitations are artificial, OF COURSE THEY ARE. Apple specifically tried to make a light and thin notebook that was highly-portable with decent usage time. If those aspects dont fit your primary needs then this isnt the machine for you, plain and simple. Could Apple have halved the battery and stuck in dual 9.5mm 750GB HDDs for a total of 1.5TB storage. Sure, but that doesnt make any sense.