The prequels do not dramatise a differentiating idea. Whereas, the OT does, in absolute bucket loads.
IV - That's no moon - it's a space station! Loads of cool stuff kids of the '70s had never seen done so well before.
V - They'd be crazy to follow us! Loads of cool stuff the kids of the '70s had never seen done so well before.
VI - Now witness the power of this fully armed and operational battlestation! Loads of cool stuff the kids of the '70s had never seen done so well before.
== PAUSED 16 YEARS ==
I - Yippee! Nothing my kids haven't seen before, and done better.
II - Are you okay?! Nothing my kids haven't seen before, and done better.
III - She died of a broken heart! Nothing my kids haven't seen before, and done better.