Well the best landscapes are really about transcendence, where nature shimmers elegantly between reality and some deeper exquisite something.
At Magic Hour transcendence taps you on the shoulder and says "cheese." But you can also find it, for instance, in the middle of a perfectly rendered afternoon where all is right with the world. And of course new fallen snow is easy. And even mud, fog, rain and whatever provided you have the right psychological lens set at the correct metaphysical focus.
The implication of transcendence makes for very appealing imagery because at a deep level people badly want to experience something beyond the ordinary. Or at least they want to have an occasional moment when everything is not as screwed up as usual. And if your imagery can manage to apply a coating of transcendence on top of the scenery that surrounds people on an everyday basis, you have given them a sort of salvation.
To wit, the best selling image of all time in the US is Maxfield Parrish's "Daybreak." Not only does it transcend ordinary corrupt physical reality, it also ever-so-daintily transcends everyday morality with just a twist of modest, skinny-dipping Paganism. It is often claimed that in the early 20th Century 1/4 of American homes had a copy of this print. I'm not saying this image is necessarily good, I'm just saying transcendence sells.
Signing off, canvases to coat before it gets too hot, how un-transcendent is that.