
That actually does seem like a good idea...
And it doesn't have to stop with ancient browsers; just imagine:
Your anti-virus software seems to be out of date. Please purchase a new virus scanner for 10$ or pay 12$ 'tax' to continue.
Including 13% 'tax' for accessing iTunes from a computer with a non-Apple OS.
Add 14€ to the price if you are on dial-up.
What do you say to this?