Well obviously phasing out old standards isn't an overnight job.
Most businesses still cling onto Windows 98.
I don't know what experience you have in the industry but I can tell you nobody is running Windows 98 anymore, most businesses now are partway through migrations from XP to 7. It depends on the organization, smaller ones probably switch faster.
About half our systems are running XP and we are constantly replacing them with 7 as they come in for repairs. Las time I checked, we maintain about 1000 computers.
Even our new monitors come with VGA connectors. Most of our computers have workstation cards with DMS-59 connectors. One of these drives up to two monitors using a cable that splits into wither VGA or DVI.
VGA has no problem with HD video, you can run well over 1920x1080 on it. It's got some advantages too. Circuitry for it is pretty simple, although that's probably not so important anymore, you can probably handle any standard on a single chip now. But it's a standard on KVM switches, servers, industrial equipment, etc, and it's compatible with EGA, CGA, and text modes. It's used on everything from camcorders to cellphones, game boys, TVs and medical equipment. It's not just a connector, it's a standard, and long after VGA connectors stop being used the standard will still be used, possibly forever.
Elecro hit it spot on.
EDIT: Maybe I can provide a little more insight. There is a type of ribbon cable called a flat flexible cable (FFC). It's pretty much just a piece of tape with conductors in it. It's used internally in laptops, cell phones, and hundreds of other electronics that need a small cable running into the screen. These are exclusively VGA, because there is really no advantage to using any other standard.
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