Works fine on the cheapest shared hosting (usually with 1 click install)
Lots of free templates (most, but not all, allow freely swapping betwen templates with no negative side effects as often as you want)
Very user friendly Administration UI.
I personally think this is the #1 thing about Wordpress and all that php haters should have to do is use a more "popular" programming language to replicate this UI and make it shared hosting friendly to capture at least 20% of the wordpress developers.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.