My opponent, Obi-Vaughn Kenobi, Master Jedi of the Linux greybeards order, has proposed that older PC hardware needs Windows 8 like a "fish needs a bicycle".
His comparison is as ludicrous as if he were to propose that his beloved Shi-Tsu is even anywhere near as intelligent as either of my miniature poodles. Which it isn't.

Look, if your PC is ten years old, guess what: It's time to buy a new PC.
Even the most inexpensive, bargain basement $399-$499 COSTCO or Wal-Mart laptop or desktop Chinese special running Windows 8 is going to give you a better and certainly more secure experience than what you're (probably) currently using, no disrespect to Obi-Vaughn's beloved obscure Linux distribution running on his TRS-80 or Atari 800 intended.

But for those of you who have systems that are in the range of four or five years old, installing the Windows 8 upgrade is probably a no-brainer, and your system will run faster and more reliably and more secure than it did before.
But you may ask, "What is the value of upgrading my PC to the newest version of Windows?"
From the perspective of the regular and corporate end-user I believe that Windows 8 represents a substantial refresh and performance fine-tuning of the traditional core Windows operating system components which include a the kernel, device drivers, networking services, the Win32 desktop and Internet Explorer.

This is combined with a number of value added services which include built-in anti-malware in the form of the new Windows Defender (antivirus/antispyware) as well as cloud integration (single sign-on via Windows Live account, Skydrive, etc.) and built-in virtualization for Windows 8 Professional users (Hyper-V) just to name a few.
Read more: Windows 8: No, I AM YOUR OS UPGRADE! | ZDNet