Because this account has one.

I already have an account here with dA, however, seeing as I'm a senior in high school there's something I'm planning on doing. You see, that something is going to college.
My college of choice at the moment is AIS, or the Art Institute of Seattle.
My particular major, or at least the one I want to be in, is Game Art and Design which requires a portfolio before I can get in.
This account will be my portfolio.
I have more pieces prepared than what you currently see on the site, but a lot of them are far too large for my scanner, so I need to get a use-able camera to upload them with sometime in the future.
They'll be far less boring than these silly 'studies' I have up right now.

They even have color, heaven forbid.
Colored Pencils/Oil Pastels/Water color

It's amazing.
Just wait and see.