After 70 hours of gameplay on San Andreas I'm only at 50% completed. I've done a little bit of exploring, but the majority of that time was spent doing missions and taking over rival gang territories. And let me just say that I'm lovin every minute of it. On the mission "Vertical Bird" you get to steal the Hydra which is the GTA version of the Marine Corps' Harrier. Freakin awsome. Is it to late to buy stock in Rockstar Games. I may have to quit my job when they come out with GTA 5.