The 13in MBP has better:
CPU The CPU was shown to have marginally better processing power - Try being CPU intensive for over 10min when the CPU heats up, say any rendering or game.
FW800 My last firewire product was a 1/2nd gen iPod--so no purpose here. - For you. I have 3 HDD's that use FW800. At work we have a FW800 RAID for a scratch disk. Most professional users have a FW800 drive or two.
Optical drive Is soon to be going extinct - Again, for you. Many photographers still give DVD/CD to clients. Many businesses give files to clients on DVD because the client WANTS them on a disk, many people like to watch a DVD, or install programs that only come on DVD, like Office. Ever rip a CD with out a CD drive?
storage size At much slower speeds - That fine, long as I can have all my music and important files with me. Aside from Booting and a few seconds off of loading an App what do you get from an SSD aside from limiting how much storage you can have?
max RAM For an extra 200 - Anyone logical will pay under $100, not Apples over blown price.
HD iSight Maybe people like seeing your face in HD - Thats the whole point of it.
$100 less
the 13in Air has:
Resolution
SSD speed
Lighter Weight
Smaller Physical Footprint - Its the same footprint, 32.5mm x 22.7. It will still take up the same amount of space on a desk.[/QUOTE
Fixed that for you.