The Cost of Cables

We all know that there have been countless posts with endless debates about cables on every audio forum available. The reason I start this post is to garner thoughts from others on the cost of cables, not necessarily whether they make a difference or not. I find the prices for cables staggering and I (me personally) do not understand where the cost comes from. Some will say R&D, ok, I can go for that to a point, but can the manufacturing of wire really cost much? (In thinking about this, the discussion could be applied to audio as a whole.)

Obviously cable companies survive because we purchase their products, I include myself. But if we quit paying these large prices, would prices fall dramatically or would they just quit making cables such as we know it and/or close their doors?