When you choose not to take the time and care to select a good domain name, any number of things can and will go wrong and the result will be you getting off to a terrible start and on the wrong footing as far as your online business venture is concerned.
First impressions matter, and they matter a lot on the web where judgment can be drawn and a swift conclusion that will be impossible to reverse, reached in a matter of seconds. A domain name that has not had much thought put into it can put off potential clients. This can lead to the disastrous scenario where you will find that you have spent lots of money, time and effort advertising and generating traffic in the direction of your site, only to find that people landing at your site leave even before the page has loaded properly. Just one glance at a domain name that looks fishy or suspicious, for instance, will cause most people to quickly exit. This is the age where terrorists are everywhere including on the web where we now have sites whose only objective is to spread viruses and disable as many computers as possible.
The result is that many who have fallen victim already will tend to be nervous visiting an unfamiliar site. It is therefore very easy for them to be scared off by a domain name that does not inspire confidence.
Hurriedly registering and starting to use a domain name without doing enough research and checking can also land you into legal problems these days. We now have lawyers with special software regularly combing the World Wide Web looking domain names that infringe on their client's registered trademarks and protected brands. So make your decision after spending time doing research. Find a domain that is easy to remember, and in no way seems similar to a company that has a trademark associated. The time you spend now researching your domain will be well worth the investment.