•Why it earns a slot
Why it earns a slot: it is a landmark case of an author changing his own verdict on love under public pressure, Dickens rewrote his bleaker original ending into the hopeful one printed here, and that revised final line is now the only ending most readers ever see.
An orphan blacksmith's boy is handed a fortune by a mysterious benefactor and spends it trying to become a gentleman worthy of a woman who was raised to break his heart.
This distillation is written from the freely available original, which is always the better read when you have the time: Project Gutenberg.