"Arch" wrote: (clip)why aren't the cones
that use O-rings to close bottle stoppers turned from wood instead of
steel? (clip)
^^^^^^^^^^^^^^^^^^^^
I think the answer is simple--O-rings are already available, and they're
cheap, so there is no money to be made. A wine stopper with a tapered,
bored cork is easier to turn than one with an O-ring, probably seals just as
well, and looks very professonal.

Anyway, that would be my guess.