I think that depends. $500 off what price exactly? In order to get a better idea of where you stand on your deal, it would be best to provide as many details as possible from your quote. If you go through the thread, you'll find that most users will post the MSRP and any additional line items. Taxes, title/licensing fees, and sometimes dealer/admin fees are region-specific, so those don't have to be included.
$500 off may sound good, but if your price includes a bunch of overpriced add-ons as shown in
this post on the previous page, the dealer can easily make up the loss from the $500 discount, and then some.
$500 off MSRP, with no other shenanigans besides the tax/title/admin fee, is good in the current climate.