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 number 
of websites for about a year and am nervous about switching to 
another platform. I have heard very good things about blogengine.net.

Is there a way I can transfer all my wordpress content into 
it? Any help would be greatly appreciated!