No electronical gizmos.  No mumbojumbomagicjuju required to open the lock,
start the car, and so on.  Replacements are inexpensive.  Try replacing the
key to your BMW X5 someday.  Kewl electronical gizmos enclosed therein.  The
local roadside rescue service will not have a good solution here.  Even more
interesting was the BMW 3.0CSI key a gadget with various pits drilled to
various depths to match the work of the devil innards.  However all metal,
no electronical gizmos but not easy to duplicate.

Some things are best left simple, like incandescent lightbulbs which don't
contain mercury like the cfls, and do not need a hazmat disposal site. And
the venerable but rare steel vanagon key.

Newer aint always better.  I like my cast iron cookware.  Cooks fine, lasts
a loooong time, keeps away the demons of iron deficiency anemia
automatically, handy to whack the occasional burglar, hold down the tent in
a wind or just admire for the now unobtainable craftmanship, vanagonically
speaking of course.

Pensionerd.