I am also almost done as a mage. There's only so much gear with certain stats I can collect/upgrade from week to week while they whack-a-mole each spec in turn.
I've been holding onto hope throughout the start of this xpac, but at this point I've lost almost all patience. There seems to be a definite agenda to quickly hobble any excellent mage spec in MoP. I did not roll an original pure dps class to perform at 'middle of the pack' numbers in all 3 specs.
I am absolutely sick of the terrible mobility, relatively long ramp-up times, & unimpressive aoe/nerfed cleave. I am happy with the choices in survivability talents, but that's about it. I love my toon and the mage class as a whole but there is a limit to what I'm going to put up with. We'll see what happens when 5.2 goes live; if things continue to be this depressing, it's time I retired.