Estibot values are not only wildly inaccurate, they mean nothing and don't help the discussion.
The only ones that I see as worth more than regfee are Certainty and Norp. The other two I think you would be lucky to get regfee for, but there are often resellers that will buy that type of domain off you for $2-5.
Certainty fits a few niche areas from odds/betting to insurance considerations. Still not anything crazy and dot net certainly hurts the value. .reseller = regfee - low $xx, enduser = $mid $xx - mid $xxx
Norp isn't a dictionary word, but is a pronounceable LLLL. If it were a dot com, it would be amazing. As is, dot nets have a very limited value in the brandable world. reseller = regfee - very low $xx, enduser = mid $xx - low $xxx.
And being dot nets you will need to work twice as hard for a buyer.
Hope this helps!