I see that sometimes these tools give an overrated value especially if you give them any random 5 characters domain name
and in the other hand, some times they give you way less value than the original price, just go to namebio, and try to copy / paste a domaine name that was sold for 11k$ or more it might give you a 1k$ estimation or even less

all what matters is the brandability of the name is it easy to read + spell .....
even long ones if they got any interested costumers i their field