It's fascinating to think about Symantec's motivations for creating that very well-produced, streamlined video. It basically plays like an ad for Stuxnet, the growth of which represents the creation of a new market for Symantec.
Having said that - it could be VERY lucrative for them - just not in volume. Very much high end expensive product sales (which may be a direction they want to go in - now that MS and others are rolling out built in virus protection with the OS?).
Symantec is basically deconstructing a worm that cost some government lots of money, time and talent to create. They want to be seen as playing in the same league as the security experts at NSA, CIA or the respective equivalents of another country.