I’m using wix right now for my own personal blog. I know I don’t have my own domain name and the wix add is always on my website, however, the page can still be easily reached and I will be able to add basic content like article entries and videos. Products or merchandise and affiliate links could still also be used without having to pay a premium for a registered domain and hosting service. Pay feature may possibly be enabled as well, depending on how you set it up, so that no percentage would be deducted from sales through the site or from a sales widget.
One downside of most of these services is that, should you someday want to move to another web host, you'll likely be out of luck because of the custom code they use to display your site. Only a few of the services here let you take your site to another web hosting service: The most complete example of this is Weebly, which lets you download the standard site server folders. Squarespace offers some transferability by letting you output your site in standard WordPress format. As you might expect, the same transferability holds for WordPress.com.
Just from these features it’s easy to see how it’s worth upgrading to unlock the best for your website. And the good news is, it won’t cost you an arm and a leg! Most basic plans start from around $5 a month. Moving from a free plan to a basic plan is a really affordable way of growing your site and adding these great features to maximise your online presence.