Might also mention that a scope's optical brightness is far from the only factor in the ability to aim in dim light. The reticle's perhaps more important.
Amen from the back row.
I agree with that as well. Most of my shooting is about 15 minutes before pitch black and almost always in brush on a black target (pig). I'm still trying to decide if I like the heavy duplex on my 1.5-5 VX3, but I will say that an illuminated dot on its lowest setting seems to work very, very well.
As do headlights, as Shrapnel says.