PvP Rewards unafir expensive?

My Shamans are 69 right now and i got 18k honor on each and i make some
plans with items i should bye. BUT!!
Why the hell are the PvP Caster Weapons + Shild so much more expensive
than a Melee Off + Mainhand?

For example:
Melee:

[Vengeful Gladiator's Right Ripper] 2625Arena point Main Hand
[Vengeful Gladiator's Left Ripper] 1125Arena point Off Hand

3750Arena point

Cast:
[Vengeful Gladiator's Spellblade] 3150Arena point Main Hand
[Vengeful Gladiator's Redoubt] 1875Arena point

5025Arena point

Even the Season1 Honor Items are so expensive...

Melee:

Two-hand 27000Honor point
One-hand 18000Honor point
Off-hand 9000Honor point

27000Honor point for 2 Slots

Cast:

Caster Main-hand 25200Honor point
Shield 15000Honor point

40200Honor point for 2 Slots

Thats about 48% expensiver
So unfair :( anyone knows why?

the shield not that great, i wouldnt invest in it.

well it depends if u want to farm the badge one, or farm the pvp one and how important the resilience is for you.
Silvermoon crest drops in SL http://www.wowhead.com/?item=27910
Spellbreaker's buckler is a quest reward from SMV http://www.wowhead.com/?item=30984