Wayland's major "technical merits", as far as I can tell, are a lack of screen tearing, slightly faster rendering under some circumstances and better handling of touchscreens. That's it. If you don't have a touchscreen and aren't a gamer (few non-gamers care all that much about tearing or about framerates above 60Hz), Wayland has no real advantages to the user that I'm aware of.
X is network-transparent, more widely compatible, and arguably more extensible. Most users don't care about those things either.
Wayland has an advantage in attracting developers because it has less accumulated technical debt and general code cruft. That doesn't make it better for users, though. Most Wayland evangelists I run into seem to be devs who are more interested in the design of the graphics stack than whether it makes a difference in the real world.
So, as with so many things, "merit" is in the eye of the beholder. People should use what works for them.