Under which CMS is it more profitable to write plugins?

Question

CMS

There was a task to create an online store. But I have not worked with any CMS other than wordpress and now I am deciding which CMS to choose. The online store is not complicated and probably any of the top CMS will pull it
. Therefore, I choose a CMS for which there are convenient plugin stores. Since for a long time I want to try writing plugins for some kind of CMS for sale.
Also interested in how much users are willing to pay for plugins. Since different CMS have different audiences. For example, I heard that Bitrix users are much more willing to buy paid plugins than wordpress users.
I'm going to write in PHP, so I consider only those CMS that work with PHP

Answer 1

1c users are more willing to buy them for the reason that you have to pay for any bunch on Bitrix and pay fabulous money. These people are ready to pay not because they use Bitrix, but they use Bitrix because they are ready to pay for it + integrations with other 1C products that have problems with other CMS.
Please note that people who have an intelligent IM with a normal turnover will sit on Bitrix. But all the rest, on opencart or vp + wookomers, as for me, a plugin for vp, with their documentation, can be written by any person who understands a little bit about PHP and knows how to find information in the documentation. However, due to the huge community, paid plugins are bought only abroad, ours love freebies, and those who don’t love sit on Bitrix.

Answer 2

Solutions work fine for Bitrix.
Only this should be a really high-quality solution. Studios make good money on this.
Everything else is trifles frivolous.