Is that, unlike real grass, it wears out.
That's a fact.
The other problem, of course, is that, (despite the fact that it's a Monsanto invention), you can't kill it with this Monsanto invention.
Unlike real grass, it has no roots. Where real grass, once established, adapts to its environment and then takes hold, astro-turf is held in place by another artificial substance - glue.
So ... the best way to get rid of the astro-turf is to dissolve the glue.