One year we had Space Mountain, Body Wars, and a few other major attractions closed at the same time. That's one of the down-sides of visiting in January. Great consolations, though, as the queues for attractions are very short, and waiting is almost non-existent. We also got a treat that year, going through Space Mountain via the People Mover ("Tomorrowland Transporation Authority" now) -- the lights were on in Space Mountain and you could see the track.