I beg to differ, 100 lumens isn't the ultimate in a cheap head lamp. I got the Browning Nitiro 135 lumen Rebel 100 cr123, $55 with shipping, However, I moded it to 3AA by hotglue adding a middle strap (one cell front and two in rear) plus $3 variable pot--$10 modification. It seems the 3AA have considerably more voltage for it than the single cr123. Thus at full blast it is drawing over 1000 ma, probably over 1100. It certainly puts out 200 lumens on full blast.
However, I run it on low (400 ma current) or down to 150 to 200 ma, most of time since that is plenty. Comparing it to a cree, the quality of light is no comparison. I can see variations in color way easier with lower level of light with the rebel. Also, the rebel blast a good deal of light at lower currents. Just walking about, I dial it down to the 28 ma which is quite alot of light. The lens of the Nitro, is mostly all hotspot and little flood. I don't mind since I think a backup wrist light is a matter of saftey, among other advantages.
I am waiting for this light to come down to $35 with shipping, just to try and add to my arsenal. I have been bugging Home Depot managers, but I don't think this works. Probably, some one's palm needs to be greased before they will allow it to come in the stores.