Who wants Windows 8 anyway?
The period of PCs getting ever faster and cheaper is over. Have you seen what has happened to hard disk prices recently?
The thing to do now is make the most of the PCs we already have, and the way to do that is to delete the Windows and give them a new lease of life with Linux. The you get to choose from ALL the free software, not just a subset that people have been motivated to port to Windows. Remember way back it was Microsoft that paid the bill to ActiveState for getting the Perl language ported to Windows so NT admins had a language that did not completely suck!
The laptop I am typing this on was originally blighted with Vista. Even though it is now more than 4 years old it is still a great machine to run Linux on.
We just need to fight ignorance and vested interests. That seems to suddenly be en-vogue :)