Bob, in the end it all depends on why you do what you do. For me it's the challenge, not only of capturing likeness and anatomy, but attitiude, flow, even the 'feeling' of the character (if I'm really lucky)... then there's the hair, the folds in the cloth, stitching, the texture of leather, or trying to find a way to replicate the weave in a strap... I may not get them as good as I'd like, but it's why I do what I do.
Now a scan may come along which is printed and moulded and put out there for the people who want the most perfect copy of a character, prop, or whatever... but for me, those pieces, while a marvel to look at, will never impress me as much as the one created by some one who started with a bare armature and a block of clay.