I love the art and science of writing. Coming up with an idea, crafting it into text, polishing and adding to it until it's something that's of value to others.
HubPages lets me focus on the writing process without the hassle of having to administer a blog and all the pain that comes with that (I have a hosted WordPress blog as well, so I know it's quite a bit of admin!)
I also like HubPages because I can write on any topic that pleases me, not just the small business subjects that I normally focus on. Plus, it has an awesome community!