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

I have always disliked the idea because of the costs.

But he's tryiong none the less. I've been using WordPress on a 
variety of websites for about a year and am anxious about switching to another platform.
I have heard fantastic things about blogengine.net. Is there a way I can transfer all my wordpress content into 
it? Any help would be greatly appreciated!