Hmmm... GoDaddy is just the only one who offers them so cheap..
Dynadot is cheap too, but it's still $4,50.. which is pretty expensive for a crappy .info
Just try to understand their system (or let someone register the domains for you, and after that they have to send it to you) there are coupons from 20$ when ordering over 100$
Which is superbe too
But to answer the topic.. I think Dynadot.com is the best than...