People were actually talking about the 5er's sales being "so much better" before, in a way to give it superiority over the E. In the U.S market at least, the sales especially in relation to higher Lease rates, lagging MPG/HP, etc., show otherwise.
As for "snob", perhaps, but really, I just hold individuality to a high regard. Of course, I'd rather buy what I find to be the best product, but it does hamper the experience of enjoying something passionately when it's "shared" very widely and commonly. I could never truly happily own an E in Europe, for example, where it's a Taxi everywhere. I don't hold it against the car or the cars merits, but it would bug me. At the same time, I wouldn't spend money on something that I deemed inferior just because it was less common. In reality, an "affordable" car that's "rare" just means that it's unpopular. "Exclusivity" truly only comes from high priced cars that are at the same time popularly praised.