Good question in my comments:
Why You Should Avoid WordPress
Richard McIntyre
I am wondering why your comparison is with jQuery? JQuery is no good what so-ever to be the main data driver for a website. Even though it is capable (I love and use jQuary myself), but to get some sort of search engine recognized content with almost static pages then any CMS that you implement good caching on will be the tool for a job.
jQuery is a tool to make websites more interactive, not as a base to build interactive websites.
Here’s why.
How many business can really afford the time and money required to maintain “data-driven” websites? In my experience, most people who want a website are on a limited budget and basically want a “brochure” that provides contact info, description of services, etc.
How do you survive as a web designer? You need lots of accounts bringing in monthly hosting fees. So to make a decent living you’re going to end up hosting 100s of websites, if you want to eat. I doubt there are many web designers that have the time/expertise to maintain 100s of WordPress websites–they would have to raise prices and would lose a lot of business, from my point of view.
As it is, I think web design is a horrible business because you compete with every student in the world who found a copy of GIMP (or bootleg Photoshop) and has a $5/month hosting account. I sound pessimistic because I experienced firsthand “unpaid web design internships” in college, and saw how popular “unpaid web design contests” were, and this was way back in the 90s when the tools of the trade were still somewhat new. I’m sure it’s worse now with more hungry, experienced designers living in countries with low living expenses. And now I’m sure Facebook hurts the bottom line of web designers too.
So my argument is WordPress is not a good choice unless the client explicitly tells you they want to blog on a regular basis (most businesses don’t have time to blog) and they want the best SEO possible. Without regular blogging from the business you end up with a dead feed that hasn’t been updated in years.
In reality, if you’re a business professional, I don’t believe your SEO rank is so much determined by the content of your website. It depends more on how many relevant professional organizations point to your page, the age of your domain, the proper credentials/endorsements/licenses, your geographic location according to Google, and your listing in directories like Superpages.