So what is the purpose of the 13" MBP now?
For people that need some more serious computing power (likely 50% faster CPU and possibly double the RAM, ie, 8 GB, technically you can already add 16 GB) and use their laptop as their primary computer (256 GB is just not a lot once you add music, movies and images and some actual work files, eg, developer code, simulation data etc.).
(And not that those people would have to forgo the SSD, adding a second disk to a MBP is pretty easy.)
I've got the 2GB 64GB 11" model and I'd like to report that it has been quite sufficient despite my initial concerns. It is never slow with Lion gestures or video or anything, and even with an XP VM running in one desktop I still have RAM free.
Is this your only (primary) machine? I have trouble believing that somebody can have this little of digital data (once you subtract the OS and the applications).
And I don't know, after a restart, starting my 20 common apps, I already use about 2.5 GB or RAM and after a few days that goes up to between 4 to 5 GB even without using any really RAM-heavy apps like Fusion or Aperture.