Apple seems to think the state of the art is products that lack certain compelling standardised functions unless they have a plethora of reassuringly expensive adaptors dangling off them (e.g. Lightning to Ethernet, Lightning to 3.5mm jack, Optical drive).
To clarify: 1. GbE is preferable to Wifi because it doesn't suffer the same contention as Wifi does from other adjacent users and networks. 2. The 3.5mm jack port may be an old standard but unlike floppy disks it isn't obsolete. Some may consider swapping passive headphones for Bluetooth equivalents that need regular charging to be a retrograde step. 3. Just because you paid again to stream everything from iTunes over your ubiquitous 5 bar 4G LTE connection doesn't mean we all can or want to.