Why did John choose the room they are in?

He claims to have chosen the room for its size and convenience. The narrator is not happy with his choice.

"I don't like our room a bit. I wanted one downstairs that opened on the piazza and had roses all over the window, and such pretty old-fashioned chintz hangings! but John would not hear of it.

He said there was only one window and not room for two beds, and no near room for him if he took another.