I just stuck the last CFL bulb purchased around 2000 in a lamp. I have some LED bulbs in lights here or there but since I had bought like 50 of the CFL bulbs way back then I still use(d) them as replacements.It appears the train has been driven off the tracks ........
I used to use those as light bulbs when I moved around a lot so I'd store light bulbs that were in the lights at places I rented and swap in CFL's. When I'd move I'd swap back in the light bulbs so when I bought a place I had like 50 CFL's all told.
Meanwhile now days LED bulbs are easy to find and easy on the wallet so as the CFL's go bad LED's will replace them.