Choosing a Good Domain Name

So why do people spend a redicoulus amount of paper on something as silly as the right to use a certain address on the internet? Think of it as real estate. Buy and sell later. Another reason is that the clever SEO crowd discovered that anchor text is one of the strongest SEO tool availible. That means if someone link to my site with the text "widgets" in the anchor tag, search engines will associate my site with "widgets" and give the site higher rankings on that particular search phrase. So this means that if I own "widgets.com", chances are that many people will link me up with the domain name, and since that contains my main keyword, half the SEO is already made.