What makes an indecisive naval battle worth studying

Which indecisive naval battles are singled out as especially interesting?

Sirte and Monitor versus Virginia are named directly, along with several unnamed battles from the Punic Wars.

An indecisive result does not make a battle uninteresting. Examples include Sirte in the Second World War, Monitor versus Virginia in the American Civil War, and several battles from the Punic Wars. The final examples are left unnamed because they are intended for future videos. The choice favours naval actions beyond the familiar set pieces.