Picture the scene. Anchored in the Tobago Keys, late evening, you are down below laying on the Port settee (or "Horizontal II" as my wife calls it)., single malt in hand reading a good book. Admiral is banging about making jam or something. She needs to access the drawer under your settee, bookshelf over your head, etc.. Moment ruined!!!!!
On TIH we will have His and Her storage in the Saloon, at the very least. The Port side is mine and the Starboard side is hers. Keep in mind that I have a full Perkins M65 engine as a spare (minus the flywheel and block) I need all the space possible.