Is the basement cost estimate realistic?

We invested the money elsewhere and are now very happy without a cellar.

I confess to belonging to the faction "(when in doubt) for the cellar," but I am happy for everyone whose property gives them the freedom to choose, should they want to belong to the other faction.

I admit to belonging to the faction "(when in doubt) for the basement," but I am happy for anyone whose property allows them the freedom to choose if they want to belong to the other faction.

Pardon? What do you mean by that?

What? What do you mean by that?

Well, you know my basement formula. The friends of wanting to leave out the basement need a plot of land whose elevation profile cooperates.