I’ve been watching this for a while and it just dropped $100 today.
$500 historically seems to be about the best deal on the 985 (shipping wasn’t included before).
This was the best price I could find on the 980 / 985 through Black Friday.
Valid today through Christmas Eve or until sold out.
$500 + tax, free shipping, and $10 back if you’re an executive member.
https://www.costco.com/irobot-roo…28595.htm
Good luck!