Why have a blog in Drupal? After all, the story node is generic enough, and for single-user sites, good enough to use story for all postings.
Still, I added the blog module to my site.
The blog is useful for dated articles - some postings only apply for a limited duration, and may not be valid after a few days or months.
Those kind of articles are better posted in a blog.
So, will be using the "story" node - article is probably a better description - for tools, travel tips, recipes, etc - things that may still be valid for months or even an year or more.
Will use the blog to post items that may be relevant only for a short while.