On this Christmas, a lot of us will pay more then $1000 for a new iPhone XY or for a similar Samsung one (twice the price of a netbook) and you will have in your hand a quite powerful machine: for instance iPhone used as Theorem Prover is faster then an Intel Workstation (!)
It is a pity Apple does not provide a small up to connect your iPhone to a set-top-box providing a monitor and a keyboard (and possibly some recharging…). It will be a far more powerful system then the new already-outdated MacMini out of there
Samsung DeX is a very cute idea: too bad it works only on two (!) models.