I dunno, each light was about $30. [PlanetBike 1W LED spot ] I think of them as mutli purpose. At times where the power is out, they can light a room for many hours on a single set of AA's; they're handy enough to make pretty good camping flashlights, and they provide the just-in-case lighting I feel I need on the bike. Now perhaps Rita in '05 warped my fragile little mind, but we were without power for over three days, and at the time I only had a single Luxeon LED flashlight. It really worked well, and I would have been very happy to have several, so now I have a total of 4 of these 1W LED lamps.

Also, these little spots do run fine on rechargeable NiMH's, so if I were using them daily, it wouldn't be hard to swap in fresh batteries each morning.

I think I could probably do the 3W LED MR16 for $30 not including the battery, (I have quite a few SLA's); but you loose a bit of the "handiness" in the process. On the other hand, one could make an MR16 "lamp base" that would hold a 12V 12ah SLA, for the incremental cost of the MR16 connector, some wood, a switch, and the wiring, so maybe that wouldn't be so bad. Its the bulb that carry's most of the cost