This is a killer domain hack. DEAL is one of the most prominent keywords used in marketing. From Amazon, other online retailers and up to the small companies pushing for marketing, the keyword of choice is DEAL.
Make a simple search on Twitter, Facebook and Google for DEAL and you will find a number of marketing campaigns pushing for the use of the word.
Check the statistics on the website and you will see that even if there never was a website on DE.AL, there is still a lot of genuine interest on the domain.
This is a .al domain, ccTLD Albania. Renewal price is just 12.99€ or less.
Other domain hacks in the space sold for up to *50KUSD* (such as SOCI.AL).