Craig's brother used to make cheesecakes (cream cheese only, no ricotta) and sell them to a small local restaurant. They would cut them into individual servings, wrap tightly with plastic wrap and freeze. They'd take out a few each day to defrost so they'd be ready to serve, then pull some out throughout the night if they were having a run on desserts.
He did it just to make a little extra money plus he loved to cook and liked knowing people loved to eat his cheesecakes - triple chocolate (white, milk, dark layers) and pina colada were his most requested.