LOL... for full scale maybe...
The average R/C trainer has close to 0.8:1
People don't seem happy with a sport model that doesn't have at least 1.3:1
The average Pattern competition airplane is approaching 1.8:1 now (headed up Most of the Pattern ships at the local fiels will hover at 1/2 to 2/3 throttle)
The 3D guys want 2.5:1... If they can get it, they'd take more and still complain it wasn't enough.