From what I can tell, though, either circlets are somewhat limited in the enchantments you can place on them, or I'm somewhat limited in the enchanting skill. If the former, maybe one thing Bethesda could look into would be expanding the way that Circlets can be enchanted.
Secondly, expanding the selection of circlets would be pretty nice. Right now they all look the same, just different colors. A few different varieties would be something fun to mess around with. In the end, though, I'm just glad they finally exist. Worst case scenario, a mod or two comes out soon adding in a selection.