Toggles:
Actually, I think that kitchen had - and still has - a tremendous infkuence. You would not believe the influence movies and TV can have on people's consumer desires. I think that Rosemary's Baby began a trend of freshening up old houses and apartments that continues to this day. This Hollywood influence on real life is part of what I write about for a living, and it amazes me how little it's understood. Most people can understand how Farrah Fawcett influenced hair styles, or how much Diane Keaton's wardrobe in Annie Hall influenced fashion for a while, but not many understand furnishing influences like The Mary Tyler Moore Show. Mary sold an awful lot of baker's racks and brass coat stands.
In 1968, when Rosemary's Baby was such a huge hit, it introduced a lot of people to the idea that old houses could be great places to live, not just a way to "get by." New Yorkers had known that for a long time, but the rest of America was still into the idea that a new house was the most desirable.
By the way, the apartment in the movie was not real; it was a set designed by Richard Sylbert. He was famous for making sets look real through ageing and distressing. The Woodhouse apartment has beat-up woodwork, cracked subway tiles, and gouged floors - all of it done by studio craftsmen.