[Osiris]

GoDaddy also has north of 50 million domains registered versus 3 million for Namecheap. If I understand correctly, GoDaddy doesn't make any (or very little) of domain sales, it's the other services like hosting, email, etc that generate the revenue.

[joelrunyon]

How much GoDaddy charges for domains has little to do with their SEO ranking.

They do use it as a loss-leader because most people starting a new site search for domain names over hosting when starting out.