An update:
http://www.amazon.com/gp/offer-listi...on=refurbished
An unknown number of refurbished K1's are again available for $149.
Refurbished K2's still available for $219.
http://www.amazon.com/gp/offer-listi...d_i=B00154JDAI
Amazon Customer Service has stated that refurbished units carry the 1-year warranty.