For me there’s a certain ease of use in the form of its configuration that just really sticks with me.
Like just being able to launch another display, or the ability to not use a compositor is a huge plus for me.
X works 100% in all my use cases, Wayland doesn't. Amd according Wayland devs, this is by design; Wayland is not supposed to replace X use cases Wayland devs consider not valid.
So, in my case, X