That's kinda the point though.
Why is it not assumed to be okay when once in a while MS makes something not work. Timeframe is the same, those old versions of Office are 10+ years old. Let them die, it's okay if they don't work.
If only everyone could force stuff like Apple dies and not get burned for it, we'd be rid of serial ports, PS/2 keyboards, and other antiquated garbage. Both of which I got along with brand new POS equipment this week.
Apple users are much more used to having forced updates to hardware every few years in some form or another. That's a good thing progress wise.
PC users should try to grasp that.
Switching to a Mac would require buying new everything, and it'd all be current and work great (and have a new interface to learn), but for some reason people are unwilling to do that when upgrading a PC.
Typed on my touchscreen WP7 phone with a "meatstick"

Excuse the reasonably good spelling.