Horwath
Legend
Sorry for cutting you off, but I really consider the way different armors aren't equal to be a feature.
Having Hide armor to be strictly inferior is to me definitely not a bug, to pick the perhaps most prominent example. It *should* have the appearance (and stats) of something primitive that you wouldn't choose if you had a choice.
Scalemail (or is it banded mail) - same thing, it *should* be inferior. (Unless it's dragon scales! ) It makes things more interesting, not less.
That is all true, but
They should have implemented armour for every dex score between 8 and 20 and then slap on a filler of cheaper/inferior amours for militia.
Adventures can and will buy the best money can buy, and that is currently studded leather,plate and to a degree breastplate.
So we have covered dex 8, dex 14(maybe 16 with a not so hot feat) and dex 20. There is still that much missing.