> They last forever, aren't subject to the level of interference wireless is, and, in many conditions, have faster data transfer speeds. Ethernet is still great.

Take away "in many conditions" and replace with "always, without exception" and replace "faster" with a "at least a magnitude faster" and we are in agreement.

If you need performance and reliability (like for instance for iScsi) there is really nothing which even compares to wired ethernet.