As an example of choosing a good domain name we have a client that sells Rainwater Tanks. After doing some research we saw that there were thousands of sites with the term rainwater tanks in there domain name all chasing that keyword to get to the top of the search engines.
Now that you understand a little more about turnkey websites you now need to understand the content part of all of this. Many businesses doing this will simply add content with out paying to much attention to its uniqueness. This in itself could end your business faster than anything else online, especially since the release of the Panda and Penguin updates within Google.