I haven't switched to Vista because it's a RAM eating son of a *****
False. Vista uses RAM in different way, than previous Windows versions.
Your right, it does, it uses way more than previous version 
If you look at the system requirements for new games they always say something like 1Gb RAM (And 1.5Gb Vista) why is this? 
Do the games run in a different way in Vista that requires more RAM? The way Vista uses RAM is bad for wanting to run a lot of processes at once... right?
wrong. you need to do some research on Vista's Ram handling.
basically- Free RAM is bad RAM. There would be no point buying extra RAM if the OS is just going to try it's best to page everything to disk to keep it free. Vista uses unused RAM for caching Often used data and executables. When another application requests RAM- it gives it up. It's called Superfetch, and it reduces paging.
I'm sure there are ways to disable it, but I'm also sure there would be a noticable decrease in performance (unless your running Vista without sufficient RAM in the first place, in which case SuperFetch wouldn't have any Free RAM to use)
As for the requirements- why do some say 128MB for Win9x and 256 for WinXP? does that mean Windows XP is worse then win 9x? the VMM in XP is a way better then the primitive (by comparision) Win9X memory manager.
No. Read here: http://www.codinghorror.com/blog/archives/000688.html
Every single Windows version uses more RAM, than the previous one. Are you surprised?
Vista wants 2GB of RAM. Period. If you want use less, use some other OS.
codinghorror
That's where I first read about superfetch too.
