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On Would You Buy A $40 Light Bulb?
Good post. We've definitely seen this effect at National Geographic's 360º Energy Diet (http://360energydiet.com/), where nine households around the world are in week 4 of a 12-week challenge to lower their carbon footprint. Time and again, the bloggers say that they would like to switch to LEDs, but are slow to do so because of the cost. And this is a motivated bunch -- consider how many people in the U.S. and elsewhere do not value saving energy and are faced with this choice.
On Cold Realities About Electric Vehicles: Tesla vs. NY Times
Thanks all for the lively discussion! This post has been misattributed to me (though I did edit it) -- getting that fixed now. Also, Bob, thanks for flagging the issue with the photo. It's different from what we ran with the original post at the Great Energy Challenge blog. I've let the EC editors know.