It is very often that registrars, taking advantage of your ignorance of domain pricings, sell them to their clients at triple prices. Purchasing a cheap domain means finding a registrar with few intermediaries between him and the domain zone owner, and who does not take advantages of the client's ignorance. For example, there are cases, when a domain costing $9 at the most is sold at $20-25.

One of the ways to obtain a cheap domain is to keep track of different campaigns by different registrars. Many of them have campaigns for purchase of a domain name (for the first year of registration). This allows to greatly economize, especially when registering a great number of domains.