They have no staying power. You do not want to be like that. Do not blow your one chance to make a good first impression. Create return visits. Offer new and changing content at your site.
People like to see things that are new and interesting.
Many legal web sites are simply online versions of a firm brochure. People are not interested in your firm brochure. Trust me on this. Rather, your site should offer interesting and constantly changing content. Highlight the new content at your site.