I'm posting this one because I've formulated the question but haven't yet answered it for myself. We all notice and comment on the tactile dimension of a deep sandblast, a touchy rustication, the notches and grooves on some freehands, the scratchy surface of a natural cob, and so on. The dimension of touch certainly draws us to a pipe in the first place, at the point of purchase or in the online retailer photographs. But how much of a role does the texture and shape of a pipe play in taking one off the rack and packing it? Is that fascination pretty much over by the time a pipe is in rotation? Do size of chamber, shape of chamber, weight, stem, and other characteristics decide our choice before we ever get drawn to the "hand" of the pipes we smoke? Some of this depends on the time and circumstance. In a rush, on the fly, we probably grab what's handy. Only when we settle in to focus on a bowl do we begin to think of added dimensions. How much do shape and finish of a pipe count on a daily basis. I'm not sure.