These Luxury Home Mainstays May Be Gone in 20 Years

Some real estate amenities are eternal—a sweeping view across Central Park, for instance, or a doorman who knows your favorite driver. Others, though, might prove unexpectedly faddish: What seems like a must-have today could vanish in the developments of tomorrow. Here are four surprising staples of the luxury real estate market that insider experts predict could soon become obsolete.

The home theater market stateside stood at $1.4 billion in 2015, up more than 50 percent since the same period in 2010, per Cedia, a trade association for home technology companies. Of course, it’s no longer enough to install a supersize screen and digital projector: True cinephiles can build their own $1 million personal Imax theater and sign up for Prima Cinema, a Netflix-like service for the 1 percent that allows rentals of first-run movies at $500 a pop.