And when you figure that the cost of electricity is most likely going to go up long term, and that some areas are far higher than $0.11 per KWH, the savings in favor of the LED bulbs really add up. Only 10 of these LED light bulbs replacing 10 standard incandescent bulbs should save you about $1,000 (at $0.11 per KWH) to $2,000 (at $0.22 per KWH) over their lifetimes. I haven't counted, but I'm willing to guess that my house has 30 or more light bulbs in it. That's a potential $3,000 in savings at the current electrical rate around here, and greater than that as the electrical rate goes up.
The only serious problem is committing $1,200 now (the cost of 30 LED bulbs) in order to save $3,000 (which is above and beyond the cost of the bulbs, since the electrical savings are in the range of $4,200, or likely well more than that if rates continue to go up) down the road about 5-10 years or so. But if they are found to last far less than 25,000 hours under real life conditions, the potential savings could vanish or even go negative. Don't knock over that lamp!