Because there's nowhere else to go but to the upmarket ships like Oceania, Azamara, etc. Which we'd love to try, but we have a toddler that would be bored beyond belief. Between their kids club and larger-sized ships to roam, our kid stays occupied on Celebrity. From what I've heard, there's little to nothing for kids on the more premium lines. We have little desire to sail with RC, NCL, MSC, Carnival, etc. Maybe Disney here or there, but all the Disney stuff would get on my nerves after a few days. We have three bookings on Celebrity through 2024 and we're sticking with them for now.