Why would they need a hybrid?

It's because a dinosaur zoo IS different.  Dinosaurs were brought back from the dead, then the wonder seemed to wear off, because they weren't around as long in our lifetime to have such a huge impact when alive.

Besides, the main theme was how Corporate wanted to go the extra mile when they didn't ultimately need to.  So a kid looks at a Stegosaurus like he would an elephant.  Fine, there's nothing wrong with that.  It's still a Stegosaurus.  So profits went down a bit.  No biggie, especially with how much revenue was still coming in.

And you can't have normal dinosaurs chasing you in the jungle or breaking out of their enclosures all the time, it's been done 3 times already and had started to wear thin.  Bringing in a new dinosaur that was bigger and scarier doesn't work as well as a hybrid war animal, since that is the future of biological technology.

Using movie logic, I guess that makes sense. I was talking more in the real world which JW places itself in. When dinosaurs are brought back, I don't think anyone is ever going to question or get bored of a Apatosaurus or a T.rex. Never bored enough to force a company to create a hybrid.

You'd think that they would open a Raptor exhibit and maybe have some Stegoceratops BEFORE letting Dr. Wu creating a hybrid CLEARLY designed for military purporses.

It's not about being bored or the company going under. Even before the reveal of the I rex Claire says the park is doing fine. It's about the companies getting greedy and wanting more. Sure you can have the dinosaurs get a good attendance, have it spike every once in a while but it's the same reason theme parks like disney and universal add new rides to their parks. No one's bored of the Jaws ride or Back to the Future, but by adding more you get another crowd interested. You renew interest with people that have already been there and likely get huge numbers early on.

Theres also the fact in the real world hybrid animal often have birth defects ranging from sterility to shortened lifespans, being accepted by neither parent species, ect. In the Jurassic World universe you solve these defects by simply splicing another animal in to compensate for that.

GORILLAGODZILLA - Oh, now this is a very compelling topic! Hmm..."Why would they need a hybrid?". As you have very eloquently explained, animal-themed parks rarely if ever resort to utilizing hybrids in their shows; the appeal of the normal animals is typically enough to draw crowds. However, with a park like Jurassic World, I would imagine that they might need a hybrid due to the sheer amount of attention such an establishment would draw! I can imagine that such a park would have a constant stream of repeat customers whom are drawn by the awe-inspring sight of living dinosaurs - to the unfortunate point that individuals would indeed become somewhat used to seeing such creatures. IN the end, the park's popularity might require a new attraction - a hybrid - to reinvigorate customer appeal. Of course, this is simply my view of the situation; it could very well be that a hybrid is utterly superfluous! Regardless, this was a very fun topic! :)

The movie explains this already, though not a really good reason. Like what Owen said, "They're dinosaurs, amazing enough." Something like that. 

Well, it's actually quite simple. Here we go.

In today's society, NOTHING is good enough. Everything has to bigger and better. Companies need to the next big advancement in technology to make more money. Nobody is happy with what they have. Things become outdated real fast. People can't take no for an answer. There's no discipline left in the world. Everyone is used to getting their way and will do whatever it takes to get it. Everything is about having the most money, the biggest phone, the fastest car, the coolest job, the most Facebook worthy photos, and so on. People are spoiled assholes and that won't change. More than anything, the movie version of modern society is a generation ahead. The next generation will be bang on what JW depicted the people as. Just my opinion here of course. 

TL;DR: People suck. Get a puppy. Raise it right and you've got a friend who cares about you more than about itself. It won't live as long, but you'll love it its whole life. 

LORD VADER - Ah, refreshingly blunt, as usual! I happen to agree with your assessment; however, I also believe that change is coming. The world - our species - can not sustain the course we have set. :)

Perhaps there is some change coming. All that ISIS BS might bring the world together for at least a couple years. After that, who knows.

LORD VADER - Indeed! However, if those monsters are not enough to bring us together, puppies certainly stand a chance at doing so! ;)

I agree with @Something Real, @Lord Vader and @Durp004, the park was doing fine but the company wanted more money even though it was making tons of money because it was a Dinosaur Park. "Why would they need a hybrid?" Because why not :P? If you put aside the company, customers and money it's a very cool and horrifying idea. As long as the hybrid isn't dangerous and won't attack people then I may go to the park it's at xD.