well, back in the day before freestyle skiing really existed, i rode a snowboard.  it's hard to say what I'd do now....ski technology has changed sooo much because of freestyle skiing.  if fs skiing never existed, then skis wouldn't be what they are today, which would probably heavily influence my decision.  i sure as hell wouldn't be rocking race skis around all day, so I'd probably hop back on a board.
however, if skis tech remained as it is present day, and the only thing that changed was removing "freestyle skiing", then I'd definitely stay on my skis.