John Harper wrote:

... The flight plan was pretty complicated, over a dozen
waypoints all carefully entered into my shiny new 530 during climb out.
And guess what... I got to fly to exactly one of them....

Last, current and next waypoints are usually all you need.

GPS box peddlers sell features like 500 routes of sixty waypoints like
PBX sellers peddle their list of over a hundred featurs of which our
advanced switching design staff used call forwarding, waiting and
sometimes, transfer...