Theres only one which is about 5 years old so not only isit really outdated but it doesnt have a whole lot going for it other then graphics and the x-division. You can proabarly pick it up for dirt cheap so yeah id say try it out for curiosity sake.
Repeating nearly what everybody else is saying. The graphics in the game are great. The game right now is extremely outdated, so if you're looking for an updated roster game. This is not the place to look. The gameplay itself is extremely limited. It's not a terrible game if you want to kill sometime with. And I found playing the Ultimate X match the funnest with friends. Single player seems to get boring rather quick. But with friends you can usually kill a few hours one night with it. Probably one of the ultimate double edged sword games in my books.
Here is a comparasion graphics wise with Booker T [Impact vs WWE 13]: