Yup, that's a model 1 all right. I have one too, as well as 2 model 2's. Besides the design, one difference I noticed between the two models is that the model 1 seems to be made of higher quality plastic shell than the model 2. With the recent price drops, I think the same method of reducing costs may apply to the PS2 and Xbox, and perhaps GC as well.
The thing is, they probably make enough money without all the extras, and that way they have bigger profit margins, don't really spend any time trying to solve problems/make an easy solution for all saturns and so on.
Random, i actually paid 40 dollars for it since my friend doesn't know shit about hardware, he's a software man. Ah yup yup.. 21 pin model 1... life is good. This was a late model 1 so maybe that's why.