[ …At Meadowbrook Pointe on New York’s Long Island, a former horseracing track is now an active-adult community, where unit prices start at $525,000 and can top $1 million. At the clubhouse, residents can watch games on 17 televisions in the sports bar, play cards in one of two rooms or catch a movie in the 36-seat theater. “One of the problems I have is people come here and act like teenagers,” joked Michael Dubb, chief executive of the developer, Beechwood Organization. “A little too much partying, late hours.” ]