They'll just hire the engineers they need out of the failed iRobot and not compensate the investors / founders for building something worth acqui-hiring.
The existing Roomba revenue stream probably doesn't matter. The expertise or maybe the brand (not a great brand imho) aligns with some company priority.
Free money? I honestly don't understand comments like this. It's as if you aren't even trying to make sense. Amazon would have been bailing out Roomba so if anything this would have cost Bezos money.
