Thanks Penguin. I think I'll do that the. I'll keep with the run-flat tires but would still like the peace of mind that I have a spare if needed, even if I can still drive ~ 50miles with a flat.
I wonder if you do not have a spare and had a flat tire , if BMW Assist would send a truck to just tow you or do they have a spare tire that they can put on?

BTW- got an email from the dealer and sent me a screenshot of the status of "At Final Processing Center". He said that it was released to the carrier to the train for transporting and approximates 3-4 weeks to get here to the west coast. Hoping to get it before the end of the year then. I'm counting the days......