Just i purchased a web site domain for 10.69$, is it worth to buy?

I have about 30 sites now and I usually pay around $10 per domain. I purchase from GoDaddy and think they are great as I have never had a problem they didn't solve quickly but mostly I have never had much in the way of problems with GoDaddy. The same with HostGator. I host almost all my domains with them and have only good things to say about them. The thing about buying a domain is that they are rather inexpensive compared to the $70 I paid when I first started my online business. The domain is only about $10 and the hosting is only about $5 a months so over the year you only need to earn the same amount as I used to pay for domains for just one year. I have seen a lot of web sites that just plain suck so they don't likely make enough to pay for their domain. If you take your time and focus on what you niche is, don't get off track or side tracked by sticking other niches into your site and you should do well. Give people what they want but that you need to find on your own and then give them what they want and they will return. Keep very targeted.