Why is it that nobody can seem to make the perfect circular needle?

Hey you knitting needle manufacturers out there, listen up. This is what I want, and I’d be willing to pay for it:

1) I want a soft, pliable cable like the one on the new Bryspun circulars. It’s very flexible, very soft, doesn’t pull lace out of shape, doesn’t kink or coil.

2) I want a snag-free join like on Clover Takumi or Inox Grey needles

3) I want two versions: One with long, tapered, sharp points like Bryspun or for stuff like lace, and one with blunt points like Addi Turbos or Clover Takumis for splitty yarns.

4) I want them made from bamboo, ebony or rosewood for the larger sizes (say, above US#1), and lightweight metal for the smaller sizes (under US#2).

Why is this so hard?