Why did New Zealand choose the Indefatigable-class design rather than a Lion-class battlecruiser?
Short answerCost was decisive, and the Indefatigable also looked more like a practical successor to the armored cruisers New Zealand was effectively helping replace.
NotesCost was decisive in New Zealand's choice. The Indefatigable design also sat closer to an armored-cruiser replacement than the larger Lion class did.