Joseph DeGarmo :
Windows 8.1 since support for Windows 8 will end soon.
Support for windows 8 is NOT ending anytime soon. As per the Microsoft site, mainstream support ends 1-9-2018, Extended support ends 1-10-2023 and Service pack support ends 1-12-2016. The end of service pack support does not mean the end of updates however. Updates will be available through the end of extended support. It just means there wouldn't be any major overhauls after that date which is a moot point anyhow since 8.1 IS the major overhaul and it's extended support is also in 2023.
All that aside, I agree there is no reason to ever purchase the initial windows 8 anyhow. 8.1 is less expensive and if you had 8 you'd just get plagued with requests to install the 8.1 update anyhow. Plus it lacks many of the issues that first hampered the release of 8.
http://support2.microsoft.com/lifecycle/search/default.aspx?alpha=Windows+8