Comment by pegasus

The brush-strokes are part of the painting (they give texture and structure for example), so a painter would care about them, if he'd care for the end product. But a painter who would instead deeply care about details of the brush incidental to the task of creating paintings, by definition got lost in the woods, or at least stopped being a painter for those moments. It makes sense to care for example about the feel and balance of a brush, because that has a direct impact on the artwork, but say, collecting embellished brushes would be him wearing not a painter's hat (beret?) but a collector's.

My point is that the end-product matters most, and getting wrapped in any other part of the process for its own sake is a failing, or at best a distraction - in both cases.