It's not about schedules. These things don't change when you arrive; they change how much it costs to arrive and how heavy you arrive. So the only logical expl

It's not about schedules. These things don't change when you arrive; they change how much it costs to arrive and how heavy you arrive. So the only logical explanation is that they don't do that by enough to be worth installing and maintaining, or for fuel market systems to adapt to an amount of oversupply. The industry clearly adapts to an amount of undersupply; ships are fairly often going to burn more fuel than the route might ordinarily need due to being held up or weather or the need to reroute, are they not? So it doesn't seem implausible that the market would adapt to this; it's going to average out quite quickly. It is presumably therefore about the juice not being worth the squeeze. This doesn't rule out illogical explanations. (Belated edit for clarity)