The race schematics aren't bad, although they're also not so amazingly good that missing them is a substantial problem. The generic tier 3s you can buy in the Hissing Wastes are as good or better once you get the upgrades. The Dalish Scout armor, for instance, has 28 total bonus slots, which is very good, but racial armors can't be upgraded. Prowler armors, arms, and legs have 12 each for a total of 36. The racial armors offer different bonuses, of course, that you might theoretically prefer -- but they're heavily biased toward defense, which is usually not what people really want. The racial armors look cool, but the best argument for using them is really just to save gold. Even then, because they're defense-focused, you can get comparable results by buying one tier 3 generic and slapping it on everyone regardless of their class.
EDIT: Okay, let me take a closer look at the tier 3 racial armors.
Templar Armor: Templar armor is actually a totally reasonable option for a human warrior. The fully upgraded battlemaster armor has 20 metal utility, 12 leather defense, and 4 metal defense. Templar armor has 8 leather defense, 8 cloth defense, and 8 leather utility. That's way, way less total stats, but in some builds the crit chance is extremely valuable, and in some fights electric or spirit resistance could be very strong.
Legion of the Dead: The bonus stats are crap (20 metal defense and 8 leather defense), but it has more actual armor rating than anything you can normally buy. The only schematics that match it are either random drops or expensive buys that require the short list perk.
Keeper Robes: These again have more armor than any cloth that's buyable without short list, and they actually deal more damage than the standard battlemage set.
Dalish Scout: This is much worse than the buyable prowler set unless you don't care about damage at all.
In addition to the tier 3s, there are a whole bunch of human-only tier 1 and 2 armors, which are often either better or cheaper than the alternatives at the time they show up.