.COM domains are $9.99 all over the internet, regardless of the provider you choose.

Some providers offer discount coupons. Google for "Provider Coupons".

Yahoo does not give the kind of flexibility and technology on the long run. I wouldn’t recommend them.

If you are going with GoDaddy, choose your domain and SKIP all the follow up sales and suggestions before you purchase. It will only cost you $9.99.

I used to use GoDaddy to buy domains earlier. Now, I use NameCheap to buy domains because of their Terms of Service. Their TOS are far better then GoDaddy when it comes to handling spam complaints.

Lets say you have a product website, and there are hundreds or thousands of partners promoting it for you. A few of them use bad promotional techniques which could send a complaint about your Domain, to the Domain Registrar. At these instances NameCheap have better TOS than GoDaddy.

If you are going with GoDaddy for Domain Registration, pick up the Web Hosting package with them too.

If you are NOT going with GoDaddy for Domain Registration, HostGator is a good low cost option for Web Hosting. They support all technologies, can scale up to what ever traffic you are expecting, and have excellent 24/7 phone and email support.

Almost forgot, you could also host multiple Domain Names on a single hosting package.

What does this mean?

Let’s say you buy 2 or 3 new domain names in the future. At this point you will NOT need to purchase additional Web Hosting space. The existing Hostgator "baby plan" can be used for the 3 domains at NO additional cost.

This will save you lots of money on the long run. Read about the hostgator "Baby" package just incase you’re interested.

Hope this helps.

Have a nice day!

-Swarup
References :
NameCheap Domain Name:
http://bit.ly/2N5Day

Hostgator Web Hosting:
http://bit.ly/2rX6AO

i get my domains from hostway.com where .com domains sometimes cost as little as $7.95 USD
References :
http://www.hostway.com/

Once you register w/ GoDaddy, you can get a free account at ZoneEdit for reliable DNS service.
References :

I have several domain names with GoDaddy and don’t have a package deal. — I just paid $9.99 each for them.

Now………..if you are actually going to use the names on a web site, it might be different.

I’m just holding the names that I have, for future use.

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References :