PCEngines.ch provides small yet reasonably powerful embedded amd64 boxes entitled the APU. The new version is the APU2, which now includes three Intel Pro/1000 network interfaces, is a worthwhile replacement for a huge array of network funcationality.
Small servers are useful particularly for security purposes. Instead of sharing resources for multiple purposes on a single server, which uses the same internal clock, the same entropy pool, RAM, etc., the devices are physically separated, which minimizes compromise between systems.
freebsd-update but doesn't respect /etc/src.conf
ports for customization
tmpfs for /tmp
trim and soft-deps but no journaling