To add to what Tedster said I asked this myself. Since a majority of my work involves catering to that small percentage of people using Netscape. One thing that was pointed out to me is like what Tedster said about Security. Although Netscape 4 is buggy visually it's considered much more secure. Alot of our customers who use Netscape 4 we have found out are coming from Military bases. Also some companies, and probably the military won't allow users to upgrade software.