Question about Outlook Express

I don't know about everyone else but I use WMM a lot. I can't afford any of the professional programs like Vegas but i'm eventually gonna buy it if Microsoft doesn't make new updates. Although the interface is easy to use, there are no extra features like adding sound effects or visual effects. For example, one of the projects i'm working on has a part where a house catches on fire. But there's no option to add something like that in movie maker. There was another part where I had to spend hours trying to find a sound effect that I needed. Why doesn't windows make a list of special effects that users can use. I understand that Microsoft wants to keep it simple but add some more features. We pay $150 for windows anyway. Either add another program that can make effects or add more features.