Wired ethernet is not losing it'sits advantage. There are standards out there for 10Gig Ethernet (802.3ae), 40Gig Ethernet (802.3ba), and 25Gig Ethernet (802.3bq). These are primarily backbone/backhaul standards.
It's not apples toan apples-to-apples comparison to compare 20 year old-year-old (1 Gb Ethernet) or 25 year old-year-old (100 Mb/s "Fast Ethernet") technology to the latest in wireless just because that's what's available in the consumer market.