The reason is because we like a Christmas day and A Christmas carol has interesting content. This story give a commentaries about the generous.
The first we saw that Scrooge is a cold-hearted miser who despises Christmas.
But in the end, He was very kindness to other people and like a Christmas day.
That make me want to know why he change his mind? And I want to know what is he met in his dream. How can he change his life. He was alive in Christmas day or he died?