Just to make things clear, Version 8, or Acrobat 3D as it was called,
had the 3D Toolkit App., which was supplied by Right Hemisphere.

Acrobat 9 Pro Extended no longer has 3D Toolkit, it comes with an App.
called 3D Reviewer which is an Adobe product. It is missing some of the
functionality that 3D Toolkit had. This is probably why the price is lower,
and probably why 3dm import is missing.:(

You can still do animation, explosions and other functions but Version 8 was
a much more complete tool. You can also use Right Hemisphere's Deep Exploration
software, but it's quite expensive.