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Sure, it depends on condition. They often go for around $250 on eBay. I'd sell it locally though through something like Craigslist or LetGo as shipping is a killer. If in pristine condition and no screen issues. It may get more. The original box also helps.
 
Locally around me I see them on Facebook Marketplace for around 200 but as soon as I see them hit 150ish I will buy two for my new 2019 iMac and set up a triple monitor setup.
 
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