The shortage of IPv4 addresses and the horribly slow adoption of IPv6 is a big issue. SNI works fine, but when it doesn't it fails horribly. Apache defaults to

The shortage of IPv4 addresses and the horribly slow adoption of IPv6 is a big issue. SNI works fine, but when it doesn't it fails horribly. Apache defaults to the first vhost on an IP which can result in non-SNI clients being redirected to the wrong site. As for XP/IE7 usage, I have a client in an aerospace related industry with most of their customers still on XP/IE7.