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And why a lot of MMOs fail. WoW, has the most AMAZING cinematics. When I first opened up WoW, seeing the Tauren's individual hairs move and the dust he throws...it was just amazing. And after that, every time an expansion hits...there is so much publicity from their cinematics. So much hype comes from them. A good friend of mine gets so excited when a pre-release cinematic comes out for a WoW expansion.
Now there have been a couple MMOs I know of that used cinematics. One used in-game graphics (but no one gets excited about that), and then I believe SWTOR used WoW-like cinematics. And, while SWTOR may have failed in gameplay...because SWTOR used an amazing cinematic trailer. Every fan (including me) got so hyped about it. It was just amazing to watch.
Then GW2...I opened it up, waiting to see an amazing cinematic. And I got...a play? With some 2d art. I was very disappointed and didn't get me excited to play the game at all.
I think if GW2 really wants to succeed, they should come out with an amazing cinematic. This will launch the game into orbit, in terms of popularity. It works for all other MMOs that have done it.