[Taiko]

Can someone tell me in easy-to-understand English what the difference between Classic SE IV and Gold is? And why I should pay another 40$ for SE IV GOLD when I own the origial? Is there any way to patch Classic to Gold? Or is that shadey?

Thanks for the help in advance, been a couple years since I broke out SE IV. SE V is a definite must-have if its as good as SE IV.