I get emails constantly from people asking me how they can build their blogs/get more followers/get more comments, etc.
I've said this before and I mean it - I blog because I honestly wouldn't remember half the things my girls have said or done or their milestones if I didn't put it somewhere. This has been an AMAZING way for me to keep a record for our family. It forces me to think about taking pictures all the time too or I might not do that either. And the grandparents and other family members can watch our girls grow. I make time for it because it's a priority for me to keep those memories. I would do it whether I had 2 readers or 2000.