In one word, versatility.
In a bunch of words:
It will play ALL 2-way, 4-way, and 8-way games, better than an 8-way.
It will also play 49-way games, and low-res analog games like Road Runner.
The only games it will not play well are true analog games, like Star Wars.
The stick only has 49 positions, but reads like a very jumpy analog stick.
That will cause your crosshairs to jump from one position to the next on games like Star Wars, rather than tracking smoothly.