I see, I guess I consider the S2 to be those things already, just that it's a small tablet in that respect. So, for me it already does exactly what I want it to. By workstation I mean just that, my home workstation, several multi-core processors, lots of RAM and many internal drives, networked to external storage solutions. Basically where I can do the real heavy lifting that I need to do.
Half of my friends with tablets, mostly iPads, seem to have keyboards and other peripherals that they carry around with them. To me that seems a bit odd. I can understand if they were using it as a doc for home, but if they're going to carry them it would seem easier to have just purchased a laptop. (doubly so when they're already carrying an iPhone or equivalent)
I understand what you're saying though, my concern is similar to yours, that being the size of the things needed to achieve such a thing vs another solution.