Originally Posted by
Taiphon
No.
After a switch from clicking to keybinds there is a transition-period where you'll perform worse than before. For some people that period lasts longer than for others, it can be smoothed, etc, but the fact is that switching to keybinds will initially hurt your performance.
Is that worth it? Depends how much time/effort you invest in the game - how casual you are.
My ilvl is 453, after hitting 90 in less than a week, so you can imagine how rarely I do a dungeon - and can't even get into LFR. I have everything keybound, but if I were a clicker, it would make no sense for me to switch.