There will always be a demand for these cards
The animal classes playing into village tropes, the seasons making use of paw prints, the various animal-centric abilities (forage, valiant, and expend) all reinforced the set's core theme, animals, in a way that made players quite happy
Masters sets tend to be pretty impactful when it comes to player accessibility
Mystic Remora We talked about this card a good deal
There are other artifact-loving 'walkers we could have chosen that aren't in print, and at least not in those colors (such as Urza)
When you consider that you only get a Masterpiece about one in every three or four boxes, this means most of the time you'll spend about $100 on a box of Hour of Devastation and end up losing nearly half of your money, getting back only $61