How are you using the Windows 2003 POP Server, Part II

In a previous post, I asked people how they are using the Win2K3 POP server and what features they wish it had.  One thing I'd like to get, especially from people who posted that they do use it today, is some more details on why and how they are using it. 

1) It seems to me that a Windows Server license is pretty expensive, so are you buying Windows Server for other reasons and just happen to use the POP server because it's free, or did the POP server play a role in choosing Windows Server?  Do you have other dedicated servers already?

2) What kind of scenario are you running it in?  Are you an ISP, are you running it for your home/family? Are you running it for a business? 

3) What other options did you look at and why did you or did you not settle on using the Windows POP server?

If you would like to send me a response via private mail or feedback, please feel free to do so.