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But note that "legislating incandescent bulbs right off the shelves" isn't an optimum solution either. For example, the lightbulb in my unfinished attic hasn't been changed in more than 20 years -- it was there when we bought the house and has yet to burn out.
When it finally does burn out, it makes good economic sense to replace it with the bulb that has the cheapest up-front cost! It is used so rarely that the up-front cost absolutely dominates any possible energy savings from using a more efficient bulb. So why does it make sense to require me to replace it with a CFL at 5x the price (or more!)???
Xenophon
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