There’s no real difference between a LL.com, LLL.com or keyword.com if it’s the exact match of a multi-billion dollar company (that really wants the domain)!
There should have been much higher 3L.com sales reported, & likely were but were under NDA.
Some of these corporate giants got some real bargains historically, and made at least hundreds of millions in difference just from acquiring theirs.
Obviously not all 3L.coms were created equal. Some reported prices will be rock bottom, meaningless investor to investor prices, etc.
However if you’ve got a really good one (or 2) then I don’t see any reason why they can’t sell for similar prices to any other top domain…