Diesels (turbo) should have more power. Modern ones don't blow black smoke like they used to. Newer ones are also much quieter. I bought a diesel truck and for towing it's awesome.
Canadian prices are currently about $0.80/litre, gas and diesel being about equal. Up until a few months ago, diesel was running about$0.60/litre (gas was the same).
I don't know what accounted for the 20 cent increase, other than someone figured out I was driving one