i haven't done that

this is just my personal opinion

...
but they have aesthetic and artistic value what is worth much more for me.
they use ancient ideas for design based on the principles of Zen. i think this is something more than stupid expensive materials. 
when you infuse and transmit all of this spirit into a product than you got something original and unique.
this is what you can't achieve only by machnies and technology. so i beleive that is a VG-10 Mcusta or anything else charged with good spirit is much better than simple raw material.
i know it's a bit too methaphysical but maybe you understand better if you check this video about calligraphy and how they manipulate the ink particles

i think there is difference between steel, even if it's the same steel
https://www.youtube.com/watch?v=xxkGe-690Tk