My developer is trying to convince me to move to .net from PHP.

I have always disliked the idea because of the expenses.
But he's tryiong none the less. I've been using WordPress on several websites for about 
a year and am concerned about switching to another platform.

I have heard fantastic things about blogengine.net. Is there a way 
I can import all my wordpress posts into it? Any help would 
be greatly appreciated!