I think that, in general, speed is much less important for the transport of goods. You care little if your purchase has to travel at snail speed for 24 hours st

I think that, in general, speed is much less important for the transport of goods. You care little if your purchase has to travel at snail speed for 24 hours straight, yet that would be unacceptable for yourself. Not to mention the fact that goods travel one way, humans generally travel both ways (so travel times also need to be multiplied by 2).