Gun prices are somewhat regional. But, I gotta say that your price is RIDICULOUS
That is super way too high.
I paid $515 for my P99c in Nov 05. But, that was when the A/S was being temporarily discotinued, and I got mine at a closeout price.
I've seen full and compact P99s go for $515-$565 at gun shows. Paid $565 for my fullsize in June 06.
Anything over $600 is over priced. Even when I was dying to find a fullsize P99 early in 2006, I passed over the ones over $600 because that's just robbery pricing. Also, at most shows, the QA guns are priced cheaper than A/S models.