At 10c/kWh, you only need about 700-1000 hours to pay back a $5 80W-equivalent LED bulb, so financially speaking something lasting only 7500 hours isn't that bi

At 10c/kWh, you only need about 700-1000 hours to pay back a $5 80W-equivalent LED bulb, so financially speaking something lasting only 7500 hours isn't that big a deal. It's more important in terms of house design, for instance there are a lot of fittings with inbuilt, unchangeable bulbs which are being used, if they last 20 years that might be justifiable, but if they last 2-5 years it's going to be an enormous hassle.