Lest anyone believe that there is nothing here but arguments from irreconcilable opinions, I eagerly await a 1200 Lumen Cree XML T6 bike headlight (Amazon) to replace my Ultrafire, although the flashlight is performing acceptably. It was on someone's recommendation on one of these threads, I think cyccomute.

I kind of believe the claimed 1200 lumens even, or close to at least, and even though it's vague for describing how well a light will illuminate the area of most interest, I'm pretty confident that illumination volumes are similar enough between headlights that a higher number (if it is realistic) will be relatively brighter in practice. So I am optimistic and all is not as dark as it may seem here.