During my adventures 15-20 years ago in taking apart old computers, I happened to discover that the BIOS chips were removable. They all had stickers covering the top, and I discovered by feel that on most of the chips there was a slight indentation underneath the sticker. On removing the sticker, I found to my delight a clear glass (actually fused quartz) window through which I could see the silicon chip.
This is a picture of the result of using compact fluorescent light bulbs in my house for 13 years. Every single one of these bulbs is either dead or defective. And this isn’t all there is- through the years, some missed the collection box and went out with the trash.
There are some fluorescent bulbs sprinkled around the house that have outlasted their brethren- notably the one in a recessed fixture above the shower, which has been faithfully illuminating its domain a few minutes each day for over 7 years now.
LEDs had better have a longer life expectancy, especially at the premium prices they’re charging.