So you can not sell the Jetstream you can sell the Jet that uses the Jetstream , the Sailoboat that uses the Wind or you can build it yourself all of which need labour , without this labour the “Jetstream” has no value.
we talk about Base Value NOT “Superstructure” Value , thinks you can touch … not like … “i enjoy sunsets value” but even that requires some labour or at least the absence of other labour necessities… , you made absent before hand by labouring… Freetime also derives its value and existance FROM Labour.