I have been riding BMW motorcycles since 1985 and have never had a bad experience with my dealer, which is now called Calmoto. They now sell BMWs, Energicas, KTM and Vespas, but way back when, it was only BMW motorcycles. It is just too bad that they moved completely out of my area last fall.
In Sparks, NV, the BMW shop,
Sierra BMW even sells high end electric bicycles. For the price of some of them, you can almost buy a Zero 7.2 KWH with several times the range and performance.
I hear only good stuff about their service on BMWs. But you can guess who pays for it. For an example, say you trade in a BMW to buy another new BMW. They will deduct the price of their complete servicing from their final offer unless you can prove it was done in the last 30 days or so. So then when they sell the used BMW, it was just fully serviced by their service department by the time they offer it for sale. I think that is a reasonable way to do it. I have heard of people buying used bikes from dealers that only had a cup or so of engine oil in them and such.
BTW, I purchased my BMW new in 1971 at Menlo Cycles in Menlo Park. Do you remember them?
-Don- Auburn, CA