12k
Had mine done in Atlanta the last week of September. Just under $460. Did not include valve adjustment.
Oil Filter Kit
Oil
Sparkies
Air Filter
Shop Supplies
BMW Inspection
They also installed shocks at the same time. I thought it was a fair price. The shocks and installation were billed out separately. I feel that this dealer has always been fair in dealings with me.
I really can't think of one thing that I would buy in goods or services that would be the exact same dollar amount throughout the country. I keep thinking of just the cost differences of a three bedroom home of 1800 sq ft in Seattle, New York, Boston, Des Moines, Houston, Los Angeles, New Orleans, and Atlanta. Not that it is directly comparable to a 12K service, but there are some of the same things affecting the cost of the 12K that affect the cost of a home.