Addendum

A major factor will be if the ships dock at a planet, an orbital station, or neither, instead sitting in deep space and receiving their passengers from shuttles. In the case of the station, probably a plain exterior will be demanded by the port authority, but in the third case, presenting customers with an awesome view during their approach will be advisable.

It's Never Too Early to Start Planning

When we have big interstellar cruise liners, will it be worth it to paint the exterior, or will people not care about the part they can't see? Or will they see it through drones set up so there can be races on the hull for gambling purposes, given that in space, anything goes? Only market research can determine the truth.

One Horsepower

The only two things keeping horses alive are rich people and racing. Once we have cheetahs genetically engineered to have a little staying power and congenial personalities, it's all over.