Okay, got inspiered here by another thread that went trough the first raid experience. My thought begun to fly away when I had that one moment when it all connected to why I didn't do enough dps or how the game mechanic worked.
My guild was doing Lurker, we have just started raiding so we had some problems with the sprout and thingys. Then the RL started talking about top dps and sutch, my mage comes on the dashboard because I vary alot in dps, sometimes the top sometimes bodom. I said that I have no clue why this was the case. I started talking to a magefriend about speccs and suddently he just asks me, "How mutch do ya got in hit rating?" I was mute, I never thought that hit was something for caster to put in. I said that I had some from tallents and such and maybe one or two items had it. Lets just say that I've been playing since vanilla and didn't have a clue about this.
Once he had gone trough what hit rating was all about I started to collect gear, and that was the time when I got my eyeopener.