At the risk of being pedantic, out here in the western US there are a number of areas where class G goes beyond 1200 AGL, many to 14,500'. We also have the ocean where it's class G once you're 12nm offshore, if I remember correctly.
Some years ago a friend got stuck under a layer near San Luis Obispo and couldn't get a pop up clearance, couldn't climb high enough for radar contact. Suggestion was to go offshore, climb through the layer and then come back. The hangar debate afterwards on whether this was wise or legal went on for some time.