Lightbulbs are perceived to have a short life
LED bulbs suffer from the decades of having light bulbs last around a year. No-one is willing to spend 15x the price on the promise of a very long life.
The idea is very powerful,since LEDs are less than 50 percent the power of CF bulbs for twice the light output, but the economics and perception will be a killer until price drops near to the CF range, and legislation/price of electricity pushes the LED...that's going to be a while!
Look for Europe, with their incredibly pricey "green" power, to lead the growth of LEDs.
Biting the hand that feeds IT
