My developer is trying to persuade 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 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 posts into it?
Any help would be greatly appreciated!