There was another posting recently where a guy co-located his RPi (or Beaglebone?) for less than $20 total over a period of 18 months.
You can also colocate your RPi for free in Amsterdam, but would you host anything serious there?
There was another posting recently where a guy co-located his RPi (or Beaglebone?) for less than $20 total over a period of 18 months.