I agree and much respect to your Dad and his friends. But how sad that many spend their own money on what other people like/expect. My answer to that is folks can spend / waste their money on what is pleasing to others, meanwhile I will take the difference and spend it on what I want. I do understand that certain circles don't buy their cars based on the objectivity of product surveyors like Consumer Reports / JD Powers and Associates, etc. No, they base it on the much higher value system = what their friends dictate to them to buy, (please forgive the touch of sarcasm). If my friends think that for me to be accepted I have to own a MB, then they will have to buy if form me. Until then, if I have to spend my own money, I will buy what I like.
Finally, on a recent cross country trip from Florida to Missouri, when parked near other luxury cars, it was the Genesis, not the BMW / MB that garnered the most attention, excitement, and questions. This is where those who make purchases to stay in the "click" lose on both ends. They spend more money on a car that blends in so much so, that it is not even noticed, (except by those whom have peer presured them into getting what they approve of). If Hyundai's success continues, those spending money on higher priced cars simply for the "snob" factor will be viewed as odd and unwise. It's like the theory of evolution, just because it's popular, doesn't make it right. With the Equus / Genesis Prestige, (or whatever they are calling it these days), coming out soon, the only way I would buy a S-Class or another 7 series is if they come down in price. Otherwise, besides the "snob" factor, it won't make sense.