I just realized that Oda created a multiple chapter plotline with characters like Garp and Kuzan just to hype up Coby:
Garp: Coby's mentor from the old gen
Kuzan: Garp's Coby before Coby existed
Sword members: Coby's crew
Hibari: Coby's wife
Oda dedicated a major plotline in the final saga with Coby as the MC. He is more important than 99% of your favorite characters