[diviney]

You can quibble over the math and assumptions all you want. Regardless of the nuances there, it is clear to me that these can indeed "pay for themselves", and I think most of us (maybe not the general population) can get past the psychology and invest now for future savings...

Having said that, I still won't buy them (for an entirely different reason). It is my belief that this technology is changing so rapidly that I am better off waiting. In a couple years, the efficiencies will be even better, and the cost will be dramatically less.

To me, it's not a question of if, but rather when. Early adopters always get burned. Think of the guy that spent $5K on that 50" plasma TV. Now they are approaching $500 (10X reduction). I believe it won't be very long at all before the $20 LED bulb costs $2 (maybe even a couple years). Then I will put them all over the place while feeling sorry for the poor saps that paid $20 each.