@ticeland - Probably repeating, but Stephen Nichols came on to Days for what was to be a 3 day stint. All these years later, he is still here. Like other characters, he has been off the show at times, but brought back. Mary Beth Evans (Kayla) the same. Maybe because her character was made a doctor, and there are very few of those around, she was brought back more. But legacy? Oh, absolutely! But then, Days of our Lives began with the Hortons...Those are hard to find now. The Bradys joined them. Also hard to find. DiMera was in and out, out and in, but then settled in Salem as well. Kiriakis clan was Victor. Period. Then came Justin, a nephew.
Days no longer has core families, but they easily could. But the turnover in writers just changes the show over and over. A couple like Steve & Kayla, is like Doug & Julie, John & Marlena, Jack & Jennifer. Forever couples, ones the audience enjoys seeing. And yes, they all age, and it is understandable to bring in new blood, have the youngsters grow up. But those youngsters want to stretch their wings, etc., are not willing to just stay with the show long term. That is why it is hard to understand why the show doesn't stay invested in those willing to stay.
Heck, networks cancelled so many soaps, and the replacements do not garner the audience, the ratings, nothing. So there is a merry go round of talk, game, news, or whatever, as they ALL try to find something that will bring in the numbers & $$$ their daytime dramas did.