I completely agree with nurseturtle, dominique all the way and for the same reason... Just because.
I do have some rir and Australorp, great layers, but I choose aussies over reds because of their size and appearance. Reds looks like, well, chickens, aussies have a presence about them.
Also, I have a Sussex, sweet thing, beautiful color. I love looking at her. Fantastic layer too. That girl cranks out an egg a day of the most beautiful shade (almost champagne colored). One thing I have heard about the speckled Sussex and I can vouch for it, they prefer to forage for their food so she rarely visits the feed hopper. If I don't or can't let them out in the yard I have to make sure there is something in the coop or run for her to find herself to eat. On days where I work late I have found her crop to be almost empty even if there is plenty of food left in the bin.