IMO, much of "our" (turners) concern about how even or thin the walls are on our vessels isn't shared by the buying public. They seem to be drawn by other factors and first impressions. I rarely have anyone feel the inside or seem interested in the wall thickness or how even it is. They do occasionally comment on the lightness of the piece, which, of course, is a result of thinness. We, myself included, still strive for these things and it probably derives from what we want other turners to think of our work.