Have had 4 diesel trucks in the past 20 years. Love 'em. However, would never have a diesel in a cold place if I didn't have to. Even down here in the "little states", it occasionally gets cold enough that diesels gel up even with fuel additives. 06:00 on 20 Feb 2015 outside Falmouth, KY:

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No problem "starting" at -18*F, even without a plug-in block heater. Let it warm up while I cleaned the windows. Dropped over the hill into a "cold pocket" 1.5 miles from the house. Fortunately was able to limp it into the neighbors barn lot. And this is with about 3x the prescribed amount of Power Service Diesel additive...

Besides the cold start, cold maintenance issue, as noted above, diesels cost more to purchase initially, more to maintain (filters, repairs), as well as fuel cost. If you are not pulling/towing on a regular basis (farm, ranch, logging, construction), you'll be money ahead to just buy a gasser and pay the extra fuel cost when towing. Especially in a cold climate... My $0.02...