I also don't recall ever having to remove a BC lamp cap that is jammed in the lampholder as it has come away from the lamp.
I can remember GLS envelopes separating from BC bases just as well, or possibly better, than I remember the same with ES ones.
Well the thing that annoys me is I feel like I need an electric screwdriver to put in an ses bulb it's so many turns, but BC is just push, twist and you're done. Plus it's either in or it's out, not just loose and flickering.
The thing that annoys me about BC ones is that I have 4 wall lights which, when they had BC holders were ridiculously hard to relamp. They're this shape, although mine are plain glass.
You needed a double jointed wrist to get the lamp in and twisted, and the pressure you had to apply used to bend the bracket that the holder was on. ES ones are
so much easier to put in.
The point is that there are always going to be some lights where BC works better than ES, and vice-versa, and I don't think there is any rule you can use to determine which is which.
The other point is to read what I actually wrote:
I think that BC is giving way to ES.
Not
has given way,
is giving way.
I've not said that you can't buy BC lamps any more, only that it is getting harder.
The ratios of ES:BC on the websites, and in the shops, I've looked at bear that out, and the fact that far more countries use ES than BC means volumes will be larger and prices of BC will
tend to be higher. And if B&Q are any guide, more and more people will be buying ES lights and fewer and fewer will be buying BC ones, so demand will
tend to fall.
Falling demand and rising prices will, IMO, mean that BC will continue to give way to ES. Will the day come when there are no more BCs made? I don't know. There might. I very much doubt that the day will come when there are no more ESs made.
All things being equal, if starting with a blank canvas, I stand by my advice that going for ES makes more sense.