"Disillusionment of Ten O'Clock" seems to ask, "What's crazier: dreaming of baboons and tigers, or living a boring life?" The obvious answer, or not, is that a boring life and a boring dream life are the pits, and therefore, are not the sane choice. A little madness keeps things fresh. It's saner to be crazy. At least, in your dreams it is.
"Strange" is a positive attribute in this poem, because it's the opposite of boring.
The haunting of the house is the result of the madness of the unimaginative and uncreative lifestyle. Turns out being boring makes you crazy.