[Rolux Magnum]

I think that most people who choose the 328i over the 335i, do so because the 328i is enough. Not because they can not afford the 335i. At least thats my excuse. For me the 328i is only 0.5s slower to 60, and that means if you get the jump on a 335i in traffic, then there is no advantage in a 335i. Also I want a more economical car, and driven in commute mode - I am sure that I can get significantly better milage than I would in a 335i. Aslo the 328i seems to steer a bit better, slightly more nimble.
Finally I think that some people like to get the best (335i) - in everything that they do! and others - myself included, like to get the best value in everything that they do.
[Otherlike to just buy the cheapest in everything they do - but I doubt they are on this forum]