On April 24 episode of SBS' variety show 'Running Man', the cast members commemorated the show's 600th episode by having a Q&A session.

Many fans have speculated that it was probably due to the cast members getting older, preventing injury from such intense game.

He continued to explain, "It is because of how difficult it is to come up with different variations of the game. We once played the game again due to the viewers' continuous demand, but we saw a drastic drop in our viewership ratings."
The rest of cast members chimed in and laughingly added, "You guys say you want it back, then you don't watch it!"

(SBS Star)