The LED bulb market is still changing quickly, but IKEA has a 600 lumen dimmable bulb for half the price of the 60 watt equivalent Cree:
The Cree bulb is on the shelf at HD for $9.97: http://www.homedepot.com/p/Cre...
The Cree is 84 lumens/watt and the IKEA is only 60 lumens/watt, so the Cree pays for itself in 3yrs, assuming 3 hours usage per day @ $0.13/kwh
My wife also thinks that the Cree can go dimmer.
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