"Why I'm not going to switch to Wayland yet"[1] argues that:
"for simple things using the compositor's screen shot tool is fine. But what if I don't like the screenshot tool for my compositor of choice? My experience with the GNOME screenshot tool (granted this was pre-wayland) was that it wasn't as good as, say, shutter, which has a lot of options, let's you easily crop and edit the screenshot from inside the screenshot tool etc. And then swaygrab doesn't even (currently) have an option to capture a rectangular region."
There are some other things this article mentions which are important to me, like Wayland's lack of color picker tools and xdotool functionality.
Wayland seems just way too immature for me to use for now. X works great, does everything I want, and I see no compelling reason to switch.
[1] - https://old.reddit.com/r/wayland/comments/85q78y/why_im_not_...