As a professional robot vacuum reviewer, I've been iffy about the Roomba legacy for a while now — and further evidence just dropped to back me up. You no longer need to wonder whether Roombas are the best robot vacuums . The better question is whether you're even going to be able to buy a Roomba at all soon.

iRobot's stock dropped by over 30 percent on Monday, Oct. 27 after the company disclosed that its most recent potential buyer dipped out . There aren't any more takers left in the queue, meaning the once-iconic robot vacuum brand could be facing bankruptcy proceedings eventually, unless something drastic changes.

iRobot's struggles to stay relevant aren't new. It's been an uphill battle to sell the company ever since the plans for Amazon to acquire iRobot fell through back in e

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