Okay, when you have all your knobs in place, you probably don't think about how great that is, but I'm here to say that when some of your knobs fall off, it's a total pain in the ass. Because your options for opening the cabinets become: try to get a grip on the teeny little nub of the screw that's poking out where the knob fell off, or open the other cabinet door, the one that has a knob, so that you can open the knobless door. Unfortunately, when the knob on the door adjacent to the knobless door also falls off, then you're back to trying to grip the nub, or reaching all the way down to the bottom of the cabinet door to pull the door open.
I can't even remember when the knobs started falling off, but it's been a while, long enough so that for several days now, since Ben went out and got new knobs, every time I reach for the knob with my two fingers ready to pinch the nub, to discover that there's a whole, actual, complete working knob right where I want it, well, it's joyful. You have no idea how substantial a knob feels in your hand when you've gotten used to pinching the nub of a screw. Especially since I like the feel and the look of these new knobs much better.