Exactly. People just have to have enough sense to realize that a Ferrari won't make a practical family car.
The MB can be hooked up to an external monitor if you require a larger display, and it would still be far cheaper than a MBP. You could take the money you save and pick up one of those hot 32GB Touches.
True, though a MacBook Air is a bit more practical than a Ferrari.
In the end, it's going to come down to priorities for the original poster. A Pro might be more than an "ordinary" Mac user needs (unless "ordinary" includes serious video editing), in which case it's down to the MacBook Air and MacBook. For value for the money, the MacBook (base) is the better deal, since it is more expandable, has Firewire, and has a built-in optical drive. For the ultimate in portability, the Air has the edge since it's so light and thin. Both have sufficient processing power for basic tasks. Leopard isn't as bloated as Vista, so having the slowest Mac currently sold isn't much of a hindrance. To me, the biggest hindrance will be the 80GB hard drive, but
I suspect that many of the design elements of Air will be incorporated into the rest of the line. The port door design, the multi-touch touchpad, and the LED backlighting are great design elements. At the same time, future Air designs might have a second USB port, Wireless USB, maybe a SIM card slot, more RAM (or expandable RAM), and larger hard drives as technology permits. Perhaps a future version will even incorporate the docking station concept seen in the patent applicaton. Nonetheless, it will always be behind the regular MacBook (and rightfully so, since there is more room inside the MacBook case), but it should be at or near the front of the universe of subnotebooks. The closest Vista/XP subnotebook in concept to the Air is the Lenovo Thinkpad X300. It has more ports, a higher-resolution screen, a replaceable battery, and available internal DVD, but is thicker, weighs about 9 oz more in its full configuration (about an ounce less than the Air in its base configuration), has only the more expensive 64GB SSD available, and relies on a low-voltage processor (albeit one running at 2.0GHz). And, of course, it runs Vista or XP while the Air runs OS X.
Something to keep in mind is that the Air isn't for everyone, nor are the base MacBook and MacBook Pro. That's why Apple makes all three. Each has compromises. Choose whichever one best-suited for a) what you will use it for, b) where you will use it, and c) how much you are willing and can afford to spend, and don't look back.