Different strokes for different folks; I like aluminum handles, some people don't. Benchmade makes plenty of knives that don't have aluminum scales; off the top of my head I can think of the Ruckus, the 710, the new Kulgera and the griptillians.
I also don't really mind scratches. If the knife doesn't show any scratches, that's great but I'm really not going to complain if it does. Frankly if I was so incredibly worried about the appearance of the knife I'd spend more $ and buy a nice mammoth ivory, micarta or mokume handled knife.
I can't see anything wrong with anybody putting harder anodizing on a knife, light or anything else, I'd consider it a nice bonus. I can't particularly see myself spending time or money specially seeking it out though. There's a tremendous appeal for me in worn tools; they show a history of use and a partnership with the owner. When's the last time you looked in the mirror and saw a face without any wrinkles or blemishes of any kind?
The best looking cameras, knives, etc. show a lot of wear, and show exactly how and where they were used.