...I was not planning on updating this website more than once a week depending on earnings if any...
...I was hoping to launch it with 25 250 word articles all written by myself and well worded and 10 500 word articles just to get the ball rolling...
I'm really a big fan of html. When I made my first webpage it's all there really was. I've also always prefered just using a text editor to write the code because most wysiwyg editors through in too much crap code for me.
A lot has changed over the years and scripts can make things much more convenient.
I use html based sites for very simple things like landing pages for affiliate marketing. Or a photo sites where the layout and text content of the site isn't going to change much and then use a photo album script for updating the phot content. A small four page microniche site is much more suited for just using an html template. An book format informational website that is pretty much complete is great in html and then add a guestbook or blog script to deal with updated content and visitor feedback.
Those examples and many others are great websites for just using static html webpages.
When I set up blog sites I always use a script. Adding new content once a week is more than enough to make a script worthwhile to you. With a blog script all you have to do is paste the new article into the editor and hit post and it seamlessly incorporates the new content into your site.
Unless you just want to get a lot of practice pasting the same code over and over into new pages.
Also LyNHS explained it well. Wordpress is a common script choice because blogging is such a common type site. You can make an ecommerce site using WP, but it makes more sense to use a blog script for blogs, ecommerce script for ecommerce sites, gallery scripts for photography sites, forums for forums, etc.
When the time comes that you decide to start using scripts just look around to find the right type of solution for the sites you plan to make.