All ghost does in this game is block you from a spy plane. You don't get all the extra effects that Black Ops 1 had. So when the other team doesn't have a spy plane up, you are essentially wasting a perk. I bet you will find a new way to enjoy the game and won't depend on ghost so much.
"Everybody panic! It's just like the Titanic, but it's full of bears!"
I have a 2.65 KD in BO, with 95% of my kills coming from only shotguns, and not once have I ever unlocked ghost. Being on the UAV is not a death sentence for the 1000th time, and you have much more than just ghost to counter it. In BO, the Jammer and the CUAV was all you needed.
In this game, you can shoot it down with a launcher, shoot it down easily with FMJ attached to your gun, use CUAV, and I'm sure there are more ways as well. I honestly believe 50% of the board here after CoD4/WaW days and entered Cod with the mindset that stealth is everything.