with data mine of the new buff coming to ingame store 5.4 ( hey made not make it @ all who knows).
would u think they add option to buy ingame item with real cash like diablo 3.
now its a 100%exp buff( pointless to use boa gear). tomorrow may be tier items.
Mats for profession, stuff u normally see on a paid to win game or free to pay game with item u could buy in right away or work to get it like gw2.
all i know if this is the direction wow is going im soo not coming back after my break.