The best way to de-emphasis armor with out a major overhaul would be to re do the rules for armor damage. The way it is now the only time I've seen armor damage is when someone needs to make a massive damage save. Which by that point they won't be needing the armor much longer.
If armor needs to be replaced more often people would focus on surviving with out it. They will still use it but it won't be the end all of all armor. Maybe a diffrent damage threshold for armor based on it's catagory. Base it on the damage that goes unsoaked and if it's five points past the armor light degrades by one, 10 points for medium and 15 points for heavy. Then have superior armor add points to that value.
Just an idea.
If armor needs to be replaced more often people would focus on surviving with out it. They will still use it but it won't be the end all of all armor. Maybe a diffrent damage threshold for armor based on it's catagory. Base it on the damage that goes unsoaked and if it's five points past the armor light degrades by one, 10 points for medium and 15 points for heavy. Then have superior armor add points to that value.
Just an idea.