What's the benefit of not selling your overpriced comic?

I know the topic of overpriced CGC graded comics on eBay has been discussed on a few different occasions. Some of these sellers ask for an arm and leg for these graded comics that are not worth a quarter of what they are asking. Some of the same comics have been up for sale for past few years. Why would these sellers continue to ask for ridiculous prices for these comic? Sometimes I will find the same comic in the same grade with a much lower asking price and many times the comic isn't selling at that price. How does it benefit these sellers?

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