At least in granite you really want to place a lot more nuts once you get these. You just start to see places where these fit like a glove with little effort. If I have to use a regular nut I have to fiddle with it much more to get an ok fit.
One thing is that a set of these for the same range has one less nut than say compareable sizes of BD nuts. And because you really really want to use them I quickly run out of them.
The smallest three seem to be the most used.