yeah I basically stopped playing gta online until they release heists. it's not a bad game mode, it's pretty fun, there's just not enough to do.
I honestly wish they would have taken some tips from the GTA San Andreas "online" modding community. There's a server called Crazy Bob's Cops and Robbers. You are either a criminal or law enforcement person. You can rob banks, rob casinos, rob stores, and do other criminal activities, and the cops try to arrest or kill you if you break the law. They get a popup on the map showing a crime in progress and can then proceed there.
I think that would give pretty much endless game play value to the online version if they had cops and robbers in the same server.