If you wait until the pre-mission lobby they are only $400.
You unlock sticky bombs at level 19 in GTA Online and here's quick hint and when to buy them.
Leaving Engine Running and Headlights On.Don’t Pay for Insurance with Police Vehicles.Destroy Unoccupied Cars with No Bad Sport.Clean Cars Using Fire Truck Water Cannon.All Helicopter and Plane Locations Part 2.All Helicopter and Plane Locations Part 1.
