Some of us 3 owners also own an S. First off, my expectations were exceeded on both cars. There were no dings, scratches, or dents. Second off, I spent LESS than 100k on the S, just about double what I spent on the 3. If I had noticed any problems, most likely I would have let the service center deal with it, but they already had, and that may be why I use that service center rather than the closer one.
Maybe I had lower expectations on the 3, but I doubt it. Since I bought my first S my expectations have been high, with NO gas stations, NO pollution, NO noise, NO oil changes, NO filters, NO gear changing, LOTS of power, and LOTS of stares from nearby people. Best. Car. Ever. Nuff said.