Is Cyber Monday worth it for small businesses?

As a small business owner, I'm trying to understand whether investing time and resources into Cyber Monday promotions will actually generate meaningful revenue or just create unnecessary stress. My limited marketing budget means I need to be strategic about sales events, and I want to know if Cyber Monday truly offers a worthwhile opportunity for smaller retailers or if it's primarily beneficial for large e-commerce brands. I'm looking for concrete insights into potential ROI, strategies for standing out, and whether the potential sales justify the effort and potential margin reduction.