I'm looking at dyno hubs for my primary commuter, and no matter what I do it seems like I'm looking at a $300-$400 investment at a minimum to get a dyno hub on a wheel with head light and tail light.

I really like the idea of never running out of light, but that's a pretty steep investment.

I don't think my current wheel (stock Trek 7000) is worth rebuilding with a dyno hub, so that's why I was looking at new wheels.

Is there an entry level solution that I'm missing here? I'm primarily commuting, but my night vision isn't that great, so I really want a bright light.

I have a MagicShine right now, but the batteries are dead on that after only one year (not sure why, but their lifespan is about 1/3 of new). I figure it won't take too many years of buying 2 battery packs a year before the dyno will pay for itself though.