Isolated comparison is always tough and might be missleading. Look for example elsewhere to find threads about the dark elf/ high elf thrower and their cost difference.Wight 90k - 6 3 3 8 - Block, Regenerate (General)
Human Blitzer 90k - 7 3 3 8 - Block (General, Strength)
For the same price you lose a point of MA and access to Strength skills (critical to Blitzers), and you gain Regenrate (whoopee!).
Now, compare the Wight to the Orc Blitzer:
Orc Blitzer 80k - 6 3 3 9 - Block (General, Strength)
The Wight loses a point of armour and access to strength skills, gains regenerate and costs 10k more!!

You also didn't mention in your example that a human blitzer gets MA+1 and AV-1, compared to the Orc blitzer. Still, they cost extra 10k. Why? Are human blitzer overprized?

Wights not only 'gain' regeneration and 'loose' the access to strength skills. They also have AG3 which is a factor in this team as well. And of course MA6. However, your comparison does not take this into account. Think of constantly dodging with a zombie for a blitz. Not to mention the GFIs.

Sputnik