Hello! L-Y-U.net is worthless in my opinion. LYU.net might be worth mid $xx if you find the right buyer, in my opinion.
Pros: 14 years of age, 3 character .net (which will be the next big thing once LLL com's are gone). Cons: "U" would probably work well with Universities or any "universal" entity - which shrinks its buyer audience. End user: low $x,xxx (good luck finding one) Reseller: mid $xxx