On Wed, 11 Apr 2007, Magda wrote:

The fact that it's only for the people who work at the airport.

That would be a pretty good reason, but one link says, for example,
that "CDGVAL is a free driverless train providing inter-terminal transfers
for passengers and the 85,000 employees of Paris-Charles de Gaulle airport.".

Note that it says "passengers and employees".

--
Yves Bellefeuille