I hate it but understand it
I hate IE6, it's horrible and thankfully at home we're an all Debian shop, so no nasty Microsoft applications to worry about however at work we're an XP/IE6 shop.
For historically reasons I have local admin rights at work and have been allowed to install Firefox and almost never use IE at all. Even the IT department mostly use Firefox at home or work. Company policy is very adamant that it's officially IE6 or nothing for most users though...
We do not have a lot of intranet applications but those that we have look like they were designed by a dog and coded by a cat. They are utter crap but they sort of work with IE6 and it is impossible for us to move off to something more modern and stable such as IE8 or Firefox.
The irony is that as new web applications are introduced they are forced to support the IE6 company standard not anything vaguely modern. It's getting harder not easier to upgrade! I bet it's the same for so many companies, lots of expensive and poorly written applications with crappy web interfaces and very slow upgrade cycles.
On a personal level, my servers gets about 10 times as many IE6 visits as IE7, which in turn gets about 10 times as many visits as IE8. So though I've seen lots of people claim that IE8 has replaced IE7 which in turn replaced IE6, I'm not convinced. At least the Firefox, Opera and Konqeror visitors are mostly on the latest versions, those browsers do seem to be always up to date. I don't know about Safari or Chrome no one seem to visit with them.