What most people don't realize is that CFL's don't adapt very well to short on/off cycles.If you use a CFL in a bathroom or other space where it will be turned on for a short period of time and then turned off, the bulb won't last the predicted number of years by a long shot. Put one in a lamp that stays on continuously or for several hours at a time and it will last quite a long while. So far, I've installed one LED PAR30 flood in the 4 lamp track fixture in the kitchen as a replacement for a CFL. That one lamp will be quite lonely until LED prices come down. Even at the high burnout rate of CFL floods, you can buy quite a few for the cost of a single LED equivalent.