What could possibly happen?
You could have your identity stolen by being infected with spyware while browsing the Internet. This is more serious than just catching a nuisance virus because the repercussions can follow you around for the rest of your life.
What would happen if I still used XP past the support date next April.
If the issue is as serious as you say then I may as well not do any fun things like upgrade this XP.
You can still play games offline. Or you could add a second hard drive to your computer and set up a dual boot of XP with Windows 7.
and wait for hopefully a better OS (Win 9 or Win Whine) is released and invest that money in a great Ecollege or Cyberpower system then.
Well, judging by Win8, you're probably better with Win7 than hoping Win9 will be better.