@TP-Link   Yes - not everything depends on wi-fi.  I only use wi-fi when I can't run CAT6a to something.  The application is those of us who have gigabit+ service with wired devices and a capable switch.  A lot of the time with gigabit service, we get about 20% more speed than advertised which would be about 1.2Gbps.  There is no way to use this as a primary router and retain the extra bandwidth.  Because TP-Link has no other options, it is forcing use of either a different router or to give up the extra speed.  With how things are progressing, it won't be long before speeds above gigabit are more commonly offered to residential applications.  

Granted, that isn't the case for about 98% of the customer base at this point in time.  But it is only a matter of time before it becomes more common.