My diesel lump needed a remap to have a wider powerband. Stock maps don't really push the engine at higher RPM. After fitting a bigger turbo and removing the DPF its exhaust note became more throaty and sporty.
I know it's nothing compared with my GTI and its BCS Powervalve system but it's better than the stock sound.
In my country diesel costs 1,22 €/L, while petrol 98 RON costs 1,68 €/L. It's easy to prefer using diesel on a daily basis.
My GTI is more of my car toy and for short drives when the diesel isn't available.