The Cree A-type replacement bulbs are some of the best and lowest cost on the market. They look like an incandescent type bulb and an industry leading 10-year warranty!
This bulb is the warm white bulb with a color temperature of 2700K. There is also a daylight bulb at a color temperature of 5000K that is slightly more efficient at 9 W. Finally, they have a 40 W replacement at 6 W and 450 lumens at a color temperature of 2700K. Here is a link for a comparison of all three Cree A-type replacement LED bulbs.
When the product was released it was available at Home Depot at $12.97.