Fantastic explanation.
In my current house I have all led lighting (we had to replace all the crappy lighting anyways, and it was cheap). The major and incremental improvements we have made the last year–new windows, exhaust fans, LEDs, and sealing cracks–have cut our electric bill in half. I have experienced two failures, as in the glue used to hold the glass failed and it fell off.
Actually I revise that. I have three Edison style bulbs in the front room for ambiance.
I think we have had this conversation before and if memory serves you are still critical of them, and don’t I understand that quite well 
(This reminds me,I need to build my greenhouse asap)