"No, it's too wasteful!"
After calculating his assets, Noah dismissed the idea of inviting the Ancient Dragon for tea, because it wasn't just a one-time issue; the Augustus family needed a legend who could stay long-term, relying on outside forces was simply unreliable.
He could spend money to invite the Ancient Dragon once or twice, but hiring him long-term would be a different price altogether. Even if Noah were more extravagant, he couldn't withstand such consumption.
It's not just a matter of cost-effectiveness; the foundation of a force shouldn't rely on external power. In the short term, it's fine, but over time, it's hard to say who they would ultimately listen to.
You see, young and middle-aged Golden Dragons might still be curious about everything in the world and travel extensively, but once they age and lose that curiosity, they will focus on developing their own power.