Comment by edpenz

There are some real steals if you dig deep enough. Case in point the Xiaomi 4A GbE:

  * $30 (not missing a zero)
  * OpenWRT support
  * 128MB RAM
  * 3 gigabit ethernet ports
  * 802.11ac Wi-Fi

Sure it's not going to compare to a full Raspberry Pi (tiny flash, no USB, no video, no expandability), but for plain routing it's fantastic value.