I think my DeWalt hammer drill, which laughed and chewed through an 8" concrete wall then asked me if I had anything else to do, would put even the best battery powered drills to shame. And DeWalt is now "just" another division of Black & Decker, I suspect Bosch and Milwaukee are as good if not better.
But when you can't conveniently run AC, or don't want to take a chance getting shocked by AC (sure, run that 100' extension cord across a dew-covered lawn one morning, just you try it) they can be damn fine tools.
As with boats, the cheap
one ain't gonna be the same as the high-priced one. But some of the professional/commercial ones, even if they need a spare battery and some patience, can do a damned fine job today.
Do you have one
screwdriver in your box? One hammer? One wrench? OK, then maybe you can argue about having one
drill. Whichever kind it is.