No, I wouldn't be doing it to stand out. I'm in college right now, It'd be for the fuel economy.
Seems anything I'd save in fuel would be out-weighed by the cost to import.
I don't know how to explain it, there's really just a stigma over here about diesel cars, that they're just kind of dirty, not that powerful (None of which I believe). We complain all day about fuel costs, but everyone still buys SUV's and trucks.
I was thinking though, as most MINI's are ordered individually, that it wouldn't be that hard to have the option, it'd probably just kill resale value.
I'm still about 2 years away from ordering a MINI, so I can still hope, I guess.