I think in general our posts are a bit too pragmatic for most.
Don't have a clue as to what he'll spring for, but as we both posted previously, Apple will probably update w. new proc. in 6-8 months and he should accessorize in lieu of the 200MHz upgrade. I'd love to have a SSD but todays prices and sizes can't be justified to me anyway.
The Air SDrive will cross into newer product as will the enet/usb dongle and in my eyes these are must haves. Maybe not to lug around but have for when you need them. A nice case that is tighter/smaller fit for the Air would be cool too. Mine just swam in my old briefcase and kept opening up and turning itself on.
Having gone through the product cycles so many times before I hate to see people ticked at making a decision on a product they really don't need.
My 1.6 is faster than my MBP 2GHz CD. I thought maybe there was something wrong w. the MBP but anandtech verified my tests. I can also set the Air on my lap comfortably. The absolute coolest running MAcLAppy I think I've ever had.
I didn't even need to buy the SD...I did a reinstall of the OS and it worked flawlessly over remote disk using the iMac, albeit slowly (overnight). As for the case, I'm using an incase sleeve for the macbook...it's a little loose but it's better than going naked in the meantime. I'll probably end up getting an airmail eventually, haha. The enet dongle I don't have a need for anyways, since it's wireless, but I think it's great apple has all these options available for people who "just need it sometimes".
If you offered me the SSD for free, I'd obviously take it, but I would never pay $1K more for it, no matter how much performance gain it gives. I understand that Apple is trying to offer the latest and greatest, and I think that's the good thing, but if you're someone like me, you won't go buy a $3000 laptop because I know sooner than later I'll want to upgrade to something newer. But hey, there's always a premium to pay for newer technology. I'm sure in the not too distant future more and more notebooks will be built to be as thin as the MBA, so right now we're paying a "premium" for it but I think the premium is well justified at this point.
If I were the OP, since he is obviously "willing" to upgrade if he thinks it's worth it, I'd, like you said, use the money for accessories, namely a case (which is a must), the super drive, etc.
Also, I've been having one major beef with the air and I hope it will fix it self. Whenever I'm typing in Pages my palm will rub on the touchpad and it will move the cursor, then i'll look down at the screen (I'm in a lecture, looking at the professor while typing), and when I look down, the cursor will have moved and i'll be inserting the newly typed text into some random part of the document. It's happened several times and it's super annoying. Hopefully my hands will adopt a new position in which this doesn't happen.
Also, there seems to be a problem with the build - the bezel is much too close to the base, and whenever I open the screen, the bottom of the bezel rubs against the base and it's already causing some "erosion" to the amount of a small chip. Other than that, the air I have is super quiet with no hard drive click and hte battery charges within a decent amount of time.
\blabbing
Hopefully my insight above will help the OP make a decision.