Well, I think most importantly it's brought us the future of horror directors. This decade has seen the emergence of Alexander Aja, Rob Zombie & Eli Roth. It's also brought out Takashi Miike as the new hard hitter in the horror genre.
For a lot of people, including myself, it's brought an awareness of foreign horror. Especially Asian.
It's also brought in a lot of remakes and unnecessary sequals to classic franchises that could have been left alone.
__________________
|