Investing value into something does not mean that it is worth that amount, unfortunately. I am intensely curious to what would make a website worth "at least"

Investing value into something does not mean that it is worth that amount, unfortunately. I am intensely curious to what would make a website worth "at least" $10,000 while generating no revenue and is not being actively used. Is it just the name that's worth the money? If so, I fail to see the significance of dev and design time. Do you have a specific target market for the website? What would a potential buyer of your website be looking for, such that when they came across your website they said "that checks all the boxes"? (and, presumably, they would be saying "holy smokes that'll save us 10's of thousands in design time!") Without revenue, what are you offering beyond "a website"? In the case that you have set a realistic price, were you as terse with your description of the website while trying to sell on Flippa?