Maybe, but I highly doubt it. Just a month ago, the best deal on 2007's was 1500 below invoice + 0%.
What you paid: $4,000 below invoice + 0%. 0% equates to $2-$3k.
Therefore, your actual price is $7k below invoice, almost $10,000 below MSRP!! Account for 53% of MSRP as 3-yr resale value, say...