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 numerous websites for about a year and am anxious about switching to
another platform. I have heard excellent things about blogengine.net.
Is there a way I can transfer all my wordpress posts into it?

Any help would be really appreciated!