What should I do (Score -1, Troll)

Recently my parents gave me $100 as a birthday gift, and according with them I should use it to buy a new operating system for my computer. I have been living happily with Windows 98 for several years, but I don't feel like moving to XP or Vista or Linux. I have tried some expensive Linux distributions in the past, but they didn't work very well and I came back to my nice Windows 98 OS. My current setup boots in 3-5 minutes, which is better than Vista, afaik. I can surf the internet, play games, write emails and so on. But since my parents demand a new OS, I'm confused. Could the Slashdot crowd help me on this delicate matter? Thanks in advance.