Should I send last-chance Cyber Monday emails?

I'm wondering whether sending last-chance Cyber Monday emails is worth the effort. My team is debating if these final push emails actually drive meaningful revenue or just annoy subscribers who might have already made their purchases. We want to understand the potential impact, timing considerations, and best practices for crafting these emails without seeming desperate or overwhelming our customer base. Is there a strategic way to approach these final promotional communications that can still generate sales and maintain customer goodwill?