To Blog or Not?

A question on one of the forums is whether our blogs should contain personal matter or be strictly business. I know I don't follow a blog myself if it is solely commercial, I get enough of commercials eveywhere else. I quickly unfollow anyone on Twitter if all they post are endless promos. More than 5 ads, and they are history. While I do post new products and do product reviews here as the case arises, I feel like me, you want to know a little bit about me, what is going on in my life, what interests me, and what challenges do I face sometimes. I find it fun and interesting and yes, sometimes sad, to read about other bloggers' lives and goings on, I WANT to hear about it, it is what makes that person's blog stand out and makes me want to come back for more. I try to keep it balanced here, a little personal, a little business, to make it live and breathe. What do you think?