:agree:Another term that may often be overlooked is ergonomics. It's defined as human engineering in my dictionary, which is "an applied science that coordinates the design of devices, systems, and physical working conditions with the capacities and requirements of the worker."
I've always used the term to simply denote the "comfort factor" of any product, or how good something feels, fits and functions when being used.
Like aesthetics, ergonomics can be subjective and largely unrelated to a product's overall cost or "absolute" quality of it's separate components.
How comfortably a knife grip feels, the suitability of the blade shape for it's purpose, the knife's balance or weight, (or even how well a rifle stock fits) can often be related to price, but not always. I think this term might have a little bit more to do with the idea of functionality than beauty, but both terms can contribute to a person's overall appreciation & satisfaction with an item like a knife.
It's funny how something can look really bad or be of cheap "quality" but still rate rather high on the personal ergonomic scale, i.e. it feels good, fits good and is naturally comfortable to use. :thumbsup: