The Roomba 880 is a seriously powerful robotic vacuum, and a particularly great choice if you have pets, and Best Buy’s taking a whopping $175 off today, the best deal we’ve ever seen.

If $425's’s more than you want to spend, the entry-level Roomba 650 is also down to $289 on Amazon, which is as low as it’s gotten outside of the holiday shopping season, when it dropped to $275.