You also have 18 games to choose from when 99% of people don’t have the money or space for a collection larger than 1-4 games.

I think the term “deep” isn’t a very good one to describe a pinball machine. Pinball is inherently not “deep” because it is limited by being a physical box. In my mind a “deep” game is one that offers a variety of things to accomplish and a variety of ways to reach those accomplishments. The goal ultimately is to allow the player remain challenged/interested with the game for a longer period of time.

I would highly highly recommend AFM over MB. While not super deep in terms of sheer number of modes, the AFM code has a wonderful variety different things to do and ways to approach those goals. The saucer also require a lot of strategy around how to manage multi balls. MB literally has 6 modes that are nothing but hitting the same shot over and over again and that’s it... with a minor layer of strategy around trying to start the modes at the same time. Almost every game of MB I played felt the same.