The older shuttle launches generally had less penalty for missing their launch window because they were not going to ISS (or Mir or Hubble) and didn't have to wait for a very specific launch window for rendezvous, which can take days.
Apollo never had a scrub, which is nice because missing your launch window to the moon can mean waiting another month. The Saturn V could turn around in 2 or even 1 day, theoretically. They did have to do a few holds.