raids

why ppl only do 3 raid? [icc,toc,voa]
are those the only raids that work?

Those are the only ones worth doing for gear aside from RS

There used to be OS and 1 naxx boss runs while we had working weeklys, but now thats a thing of the past.
Also: well ulduar has some cool trinkets bud you can get better stuff by farming fos/pos faster and doing toc and voa till you can do icc.