Except it's not cup and cone, it's cartridge bearing.
Ah, OK, never had one like that. All the ones I had were either loose or caged balls. I would spend ages getting them "just so", not too tight, but with no play. But despite all my faffing and using good quality grease, I don't think any of them made it through a whole winter before they either got rough and gritty or started knocking because they had some play in them. When you took the old BB out, you'd see the familiar pitting on the spindle bearing surfaces, or the cup surfaces, or both.
Modern cartridge style bearings, and not just BBs, but headsets as well, seem to last much better than the loose or caged ball type. As far as I know, these use standard, pre-made, industrial bearings and my guess is that they last longer because specialist bearing manufacturers make better bearings/bearing surfaces than bicycle component manufacturers. Even on loose ball type bearings, the cups and/or cones would be worn, but the ball bearings themselves, which presumably were bought in, would be fine, I don't think I've ever come across damaged or worn ball bearing.