Today, the word “phone” means always-connected handheld general purpose computer. And while *you^ may not need that, the market suggests you’re in a minority.
It's just... better. Better battery life, better typing (including blind or without looking down), better notifications with the LED, better with hardware buttons for mute/speaker/end call, better at surviving drops, and less of a headache to repair.
Less than 12 hours ago I dropped my KeyOne with enough force to make the back cover un-snap, and the phone shut down. But parts are not serialized, the back isn't fragile glass, and repairs are easy - and in this case, I just snapped the back into place.
This isn't even the best BlackBerry. I still keep my Q10 on-hand, in a drawer, sadly wishing there was a functional Matrix client for it. If there was, I'd still carry it.