Like that carbon steel, no doubt. However, stainless goes back a little farther than a few years in traditional knives, as do some interesting handle materials, like the hard rubber I have on a Cattaraugus fixed blade.
Speaking of handle materials, the more traditional grips on the old Colt Single Action Army is hard rubber, not the wood we see so much on the clones.
I have and use both. I've had great service out of knives with 440A, 440C, and Case Tru-Sharp (the 420 HC version). I also have carbon and CV blades that have patina on them. As much as I like carbon steel/CV, my current work carry is a Case SS mini-trapper with smooth Chestnut bone scales, and my jeans carry is a Case SS trapper in Ky Bluegrass scales with hand engraved bolsters. These look great, give great service, and it's hard to think of them as anything but traditional knives. Even without a patina on them and wear on the scales and bolsters I think they will still be traditional years down the road, maybe even more so by then as stainless slippies and old style fixed blades will have been around for quite a while by then.
I can understand what you are saying though. I have a 1978 Case folding hunter, 6265 SAB SS. The blades are not highly polished, but there is a little visual ripple in seeing the stocks and bolsters against blades without a patina. However, I have an earlier Western 062 folding hunter with carbon blades that have a strong polish on them and they only have a few dark specks of the spine of the blades near the tips. So the carbon blades actually are shinier and newer looking than the stainless blades on the Case.
I also have a Case jack from 82 with carbon steel springs and stainless blades. The blades are not polished so they look more at home on the knife. If you really focus on comparing the springs and the blades it raises a little visual ripple, but for the most part it seems fairly harmonious.
I think Jackknife has the gist of it though. Pattern, and this includes the blades to me, carries the most weight in whether something is traditional or not. A lot of the high dollar, custom maker slippies that are called by traditional pattern names, aren't to me because their frame shapes only remotely resemble the traditional pattern and the blades are often not anything you would have found on the originals. An example would be some of the custom made barlows that have been shown on here. They are very nice, very well made knives, but to my eye they are not really barlows, even if they do have long bolsters on them. I find a traditional patterned trapper or stockman with the proper blade configurations and in stainless steel much more traditional than a custom made in carbon steel that takes wide liberties in frame shapes and blade configurations.
The usual caveats about two cents worth and varying mileage apply. Just my thoughts on the subject. A good one for discussion though.