[alexpotato]

They key thing here would be to factor in all of the costs for a new ship e.g.

- Design time

- building time

- "fit and finish" time etc

- cost for all of the above

It's very possible the cost (or even ROI) would be larger(longer) than your calculations.

[resonantjacket5]

I think it was more of they were already going to refurbish the ship. I doubt extending a brand new ship would make any sense.