If you can wheel and deal and get ~8k off of sticker, I think that'd be a good deal. A good deal is defined differently by everyone though, if you feel comfortable with the price you paid, then that's all that matters.
I don't have the time or patience to play the dealers numbers game so I used X plan as well as the additional $3500 in incentives/rebates. I think I was around $9k or so off of MSRP (not sure exactly, had a trade-in in the deal as well).