[rdl]

You're right that LEDs aren't there yet in terms of price, but in new installations where you build LED lighting in rather than trying to retrofit existing incandescent fixtures with LED bulbs, you can get some amazing lighting with LED which isn't possible any other way.

On the environment, the low hanging fruit is to make electricity incredibly cheap -- I want PV solar and wind for grid resilience, but huge nuclear fission (U-233/Thorium, or reprocessing of U-235/Pu-239) using standardized designs in large quantities.