Used one today, replacing the cowling on an '94 S-10. Small screws, old/brittle plastic...a nut driver gives me fine control so I didn't risk breaking the plastic or cross threading the screws.
I often find a ratchet/socket too ungainly to use starting small bolts/screws, and it's too easy to over-tighten using a drill. So...it depends on the application. Other hand, went through the garages/buildings the other day replacing ballasts in any lights not working...used a drill. It was working overhead, sheet metal screws, so can't really over-tighten or cross thread. So a drill was the best tool.
You use the tool best suited to the job and/or that you're comfortable with. Keeping a set of nut drivers gives you options. It's like the current thread on using 1/2" tools. Sometimes a 1/2" (or a nut driver) is the best suited tool. Sure, there's work arounds. If you were really determined to minimize, you could cut your tool kit down to a single small entry level tool box...and break tools and parts, bust your knuckles, and be forced to rush to the store and pay top dollar when you find out you need a tool you don't (or no longer) have. Just like we did when we were young, starting out, and building up our tool sets. Been there, done that, ain't going through it again.
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