In a nutshell what the companies like Winchester, Kimber, Ruger and Weatherby know is a 375 will simply command a higher price than a 338 AND because most shooters lump the 375 with the 416 and 45 and that in turn is backed up by Karl's posting of the forum pictures.
You can argue all day long about H&W etc. but in the real everyday world the 375 is on a different ladder to the 338. he 375 is at the bottom of one ladder and the 338 is the top rung of another ladder.
