Know when to say when

Just rang in 2008 with Dick Clark and got into an interesting discussion with the Missus and our party guests.

Mr. Clark had a stroke a few years ago and still has trouble speaking. Is the fact he is still rocking in the New Year on international TV a good thing because he has overcome and is still in the game, or is it time to hang up the spurs and leave the rodeo before you get completely trampled?