I'm not sure that I even fully understand the situation, but I respect your decision to take your business elsewhere.
The thing is, I am willing to guess that there isn't a single BMW dealership in the country where someone hasn't come away with just as poor a custom experience as you have in this case. Or for that matter, we could extend that to any brand of car dealership, and for that matter, any type of product or service that is controlled by, or at the very least financed by, a large corporate entity. There are so many factors at play that it all comes down to dumb luck - happenstance - be it the phase of the moon, the time of the year, who's in control of the Senate, what side of the bed you woke up on, or whatever you want to put your money on. In the end, it all averages out. You win some, you lose some.
A gen-u-ine BMW eff-eight-zero with them tandem clutches in the transmission and that dad gum sun roof on the top-a da cawr.