Washers and Dryers Rare in Manhattan

Now this is just pretty weird, if you ask me:

But a growing number of New Yorkers can give the holiday linens a hot bath at home in their own washers and dryers. This staple of the suburbs remains uncommon in the city — apartments that have washers and dryers make up only about 20 percent of the sales and rental listings in Manhattan, according to StreetEasy, the real estate Web site. But demand is increasing, Condominium developers are making these appliances part of the standard package, and older buildings — even prewars — are relaxing longtime bans to keep residents happy and to avoid scaring off buyers.

Please tell me again why so many people would give their little finger to live in Manhattan?