I think a Win XP VM could solve most people's needs, but personally I think it's fantastic that we will have several different solutions such as ReactOS, Wine,

I think a Win XP VM could solve most people's needs, but personally I think it's fantastic that we will have several different solutions such as ReactOS, Wine, and VMs. Eventually you will run into something that won't work on your preferred solution. It's also nice that they work on different levels. Wine let you run an legacy app on your regular OS, while a VM would give you the entire operating system to fiddle with.