It is said that facebook founder/owner spends 8.5 million dollar 4 just domain.wow isnt it a huge amount!! Last year facebook made several changes like introduce new message service which will help its user to interact with each other more effectively.Many domains r buyed by facebook like fb.com!!
Thats extremely expensive.
Its problaby because of their high traffic. Facebook averages like 60x more than that so the high price shouldn't be a problem.
there are a lot other domains that are even more expensive chk the price for america.com or business.com and i dont think 8.5 mil is anything compared to the profits of the company