Bottom brackets and cranksets go together.

Cup & cone bottom brackets work just fine. Cartridge BBs, which I have used for decades, have no intrinsic advantages once the bicycle is assembled for the first time.

Bottom (bracket) line, there's no reason to replace a cup & cone BB with a cartridge one, unless you're also changing cranks, unless your existing BB is trashed beyond repair. Bottom brackets are like light switches... they're binary devices. They either work or they don't.

Overhaul your existing BB, and ride the bike for another 30 years. There's no improvements to be had, so save your money.

--Shannon