You have to understand that dealers want to dump the 2012 7-series as quickly as possible because the updated 2013 models are coming out this month with the 8-speed auto, LED lights, new Navigation, Auto Stop-start, and updated suspension. So it's only going to get harder to sell the 2012 models.
A lot of the incentives on the '12 technically expired yesterday, but they will probably be extended for this month to boost sales. So you have $7,000 option credit available. The markup on a $100,000 7-series is around $9,000. So that's $16,000 total. Then you have the owner's loyalty incentive (last month it was $750). If you are a current BMWFS customer and downloaded the BMW App you can get another $700 off. Team USA voucher is another $1,000 off. And I think that's all of it. Now that you know the numbers you can negotiate a better deal and agree on a price that you feel comfortable with.