I'm no expert on P99's, but I didn't think they made the P99 in a Compact 40sw, I could be wrong though. I guess the big question is the gun new or used? The MSRP is something like $750 if I'm right, so if it's $469 for a new Compact P99 40 (still not sure if there is a compact p99 40), then you've got yourself a good deal, but if it's used I'd say that you could probably get it cheaper. I don't remember exactly what my P99 cost as I wasn't the one who paid for it, but I think it was close to $600, so that should give you a ballpark idea of what you'd be looking at spending. Keep in mind that when it comes to a dealer whatever you want to buy is in demand and whatever you want to sell isn't.
Let a few other's chime in, they'll know for sure.