writer's block

I've been in Barnes and Noble twice this week and both times I've had a book on writing ideas in my hand to get. I just can't pull the trigger. What is it about writing that intrigues me and what is it about writing that makes me not want to do it? Laziness to the latter, I'm sure. I like the idea of writing, but I can't seem to put it into practice. They say to write at least a 1000 words everyday to practice, but what would I say? I don't have that kind of willpower to sit and write. Or do I? The world may never know.