I will not contradict myself. I did said that NoSmartz had plenty smarts, I didn't say that he had every smartz.
I change oil at twice the frequency recommended with $4/qt full synthetic from Pep Boys, or other and with a K&N filter ($10), which may not be available for BMWs. It's no big deal, for me. I have Jeep Grand Cherokees and a $20 creeper - easier than installing a new hard drive with a fresh load of Windows.
Now, I've wondered about the BMW commercials claiming maintenance and service included but never looked into it. They expand the service interval out the ragged edge but if you want a traditional interval you have pay extra.
Cancel with the dealer and take it to any corner "quick lube", you'll save a bundle. Check with them first to ensure that they have the synthetic oil and a filter. If they don't have the correct filter and can't get one, ask them if it is OK to bring one from Pep Boys, Auto Zone, Kragen or buy online. If they don't have the synthetic oil, find another quick lube.