I know it's ill-advised to leave your printer unattended, but with 20+ hour print times, how realistic is that really?

Here's the compromise that's worked really well for me:

A $30 wifi camera for monitoring and a $30 wifi outlet for turning your printer off if needed:

http://www.amazon.com/TP-LINK-Amazon-Electronics-Anywhere-HS100/dp/B0178IC734
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http://www.amazon.com/TP-LINK-TL-NC2...nk+wifi+camera
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