Diesel cars have some great advantages in fuel economy, but this case is much more important in Europe due to the gas price.
Being in US I wouldn't buy a stripped diesel than a turbo petrol with more options because this is a big nonsense
Also in Europe, the no 1 seller (VW) developed some great turbo 4 cyl petrol engines (TSI) which have better performances than their 4 cyl diesels
This trend is followed now by BMW, offering a much better 116i than 116d, also a much better 118i than 118d... 120d is already too expensive and will not have so many models sold
