My OTT light came from an office supply store at $13. It's one of the same ones I've seen at several times the price through quilting sites. DH saw them and bought me 3.
A fairly big % of our national power bill is spent on lighting. LEDs are much more efficient. My high powered LED spot lights use 7.5 watts, but are comparable to 150 watts of ordinary light. DH and I are probably more fanatical about this because we live off the grid, but everyone should be more concerned, IMHO. Whether powered by oil, coal, or whatever, power is becoming a major national problem. My desk light uses 3 watts of power and lights extremely well. We are converting our home to LEDs as we find them on sale.