So the achievments will take shitload of time if u are doing only raids.
You will get barely 100g from vanilla,around 350g from TBC,and 700-800g from WOTLK.(See blue posts for old raid gold nerf)
And this is including nearly everything.It will take 4 years of clearing em to get the achievement.
T11H+T12H+T13H will give ~3.5k gold but even with this it will take 40+ weeks.
The only reliable way is to farm trade prince donais,treasure finding pots,fleshwerks in ICC,cata dungeons for gold(they have chance on elementium lockbox)
wotlk/tbc dungeons,AT bags,Forged documents(inscription only) and OS for the bag.
What do u think about this nerf?