A four letter .com domain must be worth a lot of money. I'd want to cash in.
[0] https://www.linkedin.com/in/rkevinwatson
(I found this by Googling “Kevin Watson La Cañada”, the defendant mentioned in the domain takeover lawsuit.)
This one would only be super valuable to Google (Catch gmail.com typos) or if someone wanted to launch a product called Gail (in my opinion).
Paying a million or more for a domain to consolidate branding is common for example pop.com https://news.ycombinator.com/item?id=28223515 and I know Puppet Labs paid a pretty penny for Puppet.com when it became available, and they were able to rebrand once they had that domain.
It is www.gailonline.com
i only take my vehicle there because they own a 3-letter domain! ;)