The daybill is a great poster no doubt. But there is country of origin, and then there is everything else. It doesn't matter if you buying a Metropolis, a Dracula, a Hammer, a Godard or a Fellini. That's just the way it is. Considering how similar they are I don't think you are going to get anyone but the most diehard Aussie lovers who would pick the daybill over the insert. Sure a few might on aesthetics alone... I happen to like the colors on the insert but I can see how some might not. But at the end of the day, if cost were no object I would guess the insert would almost always be more desirable. And remember, desire is driven by more than pure aesthetics... it might be looks, value, rarity, prestige, you name it. The daybill has all of those things, but the insert has more.
IMHO of course.