Originally Posted by Snapdragon
Wrestlers perform most of their moves in the center because that is where the softest bumps are.
Also a 24ft ring is completely ridiculous. 18ft is the standard, WWE uses 20ft and I believe ROH switches between 18 and 20.
I don't think you're paying attention closely enough. If you watch a UFC fight-- they have 32ft of space and work all over the mat. In UFC, they can roll around on the mat and slam guys in any direction without turning the action around because they have loads of room.
In TNA, the action is constantly turning around to move back to the center, both because the mat is harder at the edges and because they will throw a guy through or onto the steel cables. It's like wrestling in a small bedroom.