I get ya now.   Maybe Stern does it this way so u rush into a Stern Dealer and check out the real machine in the flesh, in the hope u don't miss out
on a game (espescially LE's). ??? 

Then they add the video a few weeks or month later when all the LE models have been snapped up. Hence, the video release is usually the Pro first, then the LE later on again.  Probably just clever marketing if it makes people jump in. But yes, videos upfront quicker would be nicer.