I'm sure sales will stay higher as long as they keep expanding the Corvette market.
They just can't afford to market these cars to guys my age(mid 40's) and older anymore.
The lower price and redesign helped a lot.
Corvettes are a lot like boy bands, if your fans/buyers are only in one age group, you're doomed to fail, especially in the tight economy.
Adapt or die. Plain and simple.