Interest.me was the highest selling domain name in May,2012.Interest.me was sold through Sedo domain name marketplace for $80,000 . Here are the top 15 ccTLD sales in May,2012 :

1. Interest.me   $80,000
2. W.to   $53,000
3. Wrapp.de   $45,215
4. Set.tv  $29,000
5. Jewelry.co   $24,000
6. Raw.co.uk   $23,250
7. Farmacia.tv  $20,000
8. Immobilien.TV    $20,000
9. HomeandAway.co.uk    $17,270
10. Lampa.pl  $15,480
11. ContactLenses.TV   $15,000
12. ImprentaOnline.es  $14,986
13. Insure.it  $13,250
14. NoName.ca  $12,000
15. Ruletka.pl  $11,430

Source from http://www.domainnews.com

About Eranet

      Todaynic.com International Limited(Eranet.com) was incorporated in Hong Kong in 2005, directly under Todaynic.com, Inc. which was established in 2000. As one of the first ICANN (The Internet Corporation for Assigned Names and Numbers), Verisign,HKDNR, and CNNIC (The China Internet Network Information Center) accredited registrars, Eranet is also a leading provider ofservices in domain name registration,web hosting and Email.

Now the .asia domain only cost 6.9 USD for the first year
other domain name you may need.
.com  only USD 9.77/year
.net  only USD 9.77/year
.hk   only USD 22.63/year

To register your own domain name, check out :
http://www.eranet.com
http://partner.eranet.com