As with all orthodontic treatment, the costs vary depending on your personal situation and requirements. The cost of accelerated orthodontics through surgery averages about $4,000, explains Star Teeth Whiteningâ¢. This is comparable to the cost of traditional braces even though the process is quicker.
I looked it up on wowhead, the upgrades that cap at level 90 are purchasable with honor (2,000 honor for level 90 cap armor upgrade and 2,400 honor for level 90 cap weapon upgrade). The upgrades for weapon and armor cap to 100 is not, according to wowhead, purchasable with honor. 248 posts.
1 Each armor icon gives you an 8% reduction in damage, so a full set of diamond armor reduces your damage by 80%.  The only way to get chain armor is to find it in a chest or on a mob, or to have hacked the flame block into your inventory and build the armor pieces with that.