You do know that there are places in this world that don't get 20' of snow a year don't you? We feed with a pickup all winter because it's easier and faster than a tractor. We live on gumbo black land mud and get along just fine 90% of the time. I think it'd be better if the ground froze and stayed solid in the winter. Besides feeding we use our balebed trucks like a tractor all year. We hang gates, move feed troughs, move implements, pick up heavy stuff, etc. I would hate not to have one. Bale beds are a bargain when it comes to farm/ranch equipment.
Edit: We get 50-60" of rain a year. Pastures stay saturated from mid January to April. They stay muddy because of our wild temp swings. The ground never freezes here, our frost line is about 6".
I understand there is a good bit of the country that has conditions that can feed with a pickup all year. I also understand there is a good bit of the country that can't feed with a pickup all year for one reason or another.
If it works for you that's great.
The original poster is from Minnesota and when I visit areas of Minnesota the bale bed would need to feed cows on the plowed road.