Earlier quoted context omitted.
Just curious, any idea why you have so many users (10%) still on IE8 or under? I just checked my usage, and I only have 8% using IE period -- all versions. Of those, only 8% are on IE8 or under -- which is only 0.6% of all users.
We work in healthcare software, and IE7/IE8 support is mandatory, otherwise we'd be ignoring potential customers and losing current ones. Sure, they have iPads now, but healthcare IT moves really slow and we have to support that pace. It's really not as simple as stated above. It's not up to us to kill it off.
If they attempt to access using older browsers, we bring up an explanation page taking them to an ever green browser of their choice.