Interesting bit about his gadgets. I can absolutely picture Harry and Maggie working together on daddy-daughter art projects on the weekends. Instead of building a bird feeder out of pinecones and peanut butter, they'll make "friendship bracelets" that prevent ghost possession, stop bullets, and provide the recommended daily dose of Vitamin C.
The whole time, energy, and love thing fits. Harry loves magic. He thinks it's pretty rad, for it's own sake. While some of his Council superiors might have the ability to make things as B/A as his duster (which I can no longer think about without conjuring multiple scenes from It's Always Sunny) or his amped up Shield Bracelet Mark 2, they might not have the inclination to bother; Luccio, for example, doesn't seem to need a focus to shoot the next best thing to a laser.
I do find it interesting that the three younger Wizards (not including Molly) we've spent the most time with—Ramirez, Harry, and Elaine—have all used extremely intricate foci to do some pretty awesome things. Ramirez's gauntlet, Elaine's earring/ring/lightning chain, Harry's everything, etc. The Merlin was shown to carry a wand, and a tactical belt full of potions and other knicknacks, but other than that and Eb's stumpy staff, I can't recall any of the Senior Council using any foci of their own (not counting the Blackstaff for obvious reasons).