Should I upgrade?

Hey WordPress blogging world!! I have a dilemma.

I am considering an upgrade offered by WordPress. Has anyone else done this and how has it helped your blog experience? There are the two upgrade options of premium or business so if you did one of these why did you choose that specific upgrade? Did you go to another blog hosting site?

I have 60+ following my blog and would like to make my blog reach an even wider audience (I am totally grateful for my followers by the way!!) and wondered if one of the upgrades would really help expand my blogging reach.

This blog has inspired my fiction writing and I love coming up with stuff to blog-imagining what people think while reading my often rambling prose.

Another question I have is about an author page on Facebook and if it would encourage traffic to my blog? Anyone done this or some other option to promote blog readers?

I sit here in my library/office wondering if anyone is really reading this. Please share your experiences.