This is the only thing in the NextCruise flyer about a different deposit amount:
Additional deposits may be required when you select your ship and sail date depending on the type of stateroom/suite selected and number of passengers
I paid $79 for it in 2021. And $79 is about the max I'd ever pay for it again in the future.
Nice lunch (but not $79 nice) and upgraded beach furniture. That's about it.