Your last announcement prompted me to download Firefox for the first time so I could familiarize myself with it--I've been on IE6 forever, except at home where I use IE7. The ridiculous thing is, I work for THE leading video telecommunications company which continually pushes the envelope advancing our technology...except for our IT department, which still has us all running IE6 and Office 2003!
I'm not trying to sound like an ass here, but why wouldn't anyone upgrade to a new version of IE? I let Windows automatically update all my computers (work, home & laptop), which is free and easy as can be. I guess I'm asking, is there some advantage to not upgrading?
I'm a Firefox user, and have been for about four years now, but my experience with IE7 is that while it has more features than IE6, its load times are much longer (not to mention the Firefox/IE7 comparison...). The download and installation process takes a lot of time too, when done manually.
One reason not to upgrade is because typically each new version of any application is even more bloated than the previous one and thus requires more processing power from your computer. So you might get to a point where the newest version can't run well if at all on your computer.
Corporate IT departments are slow to do anything, and it's a pain in the ass. At my last gig, our Web servers were still running Windows Server 2000, and we were begging for 2008 because of some of the new features. This site's biggest traffic is weekdays from about 10 to 5, so obviously it's an awesome time waster for people at work. :) Fortunately, only 18% are using IE6.
It's not that the new site won't work in IE6. I've tested it and nothing breaks that I can see. But there may be some visual issues in terms of formatting here and there.
Let me backup Jeff's time-waster comment. I know I do most of my perusing of CoasterBuzz when I'm at work, and that's using IE6. Perhaps I'm a bulk of that 18% :) Also, let me echo Jeff's corporate IT comment. We're just now rolling out XP Pro to developers at work and just now moving our production apps from Windows Server 2K. Not because of new features, but because Redmond is stopping support in a year or so.
I just switched use at home from IE7 to FF3. Granted, it's just a web browser, but it feels a lot quicker and lighter on the system. Gotta say I'm using it, as well as Thunderbird, going forward.
On my work computer, which I use almost exclusively, we are stuck on IE6 since our lame-a** programmers cannot code their way out of a wet paper bag. IE7 randomly crashes the custom Oracle applications they create...so if you want Orcale to run reliably you need to stay on IE6.