Don't already own it? Buy it now. Really.
If you don't buy it now, you're pretty much confirming to anyone that knows you that you're a silly sausage.
If you buy GTA, you also get to shoot me in the face, run me over, blow me up and mow me down with helicopter blades multiple times. Everyone wins. What more incentive do you need?
And not only GTA V, there are good offers all around !