The danger in becoming a vampire, yes
Lynn 
That's one thing that Twilight lacked. The danger that she had written there were more of on the breaking the truce that they'd set up with the wolves, and also danger from other vampires. There's not much danger with natural forces like nature, sunlight, etc. There wasn't any danger about other people finding out.
What I like with VD is that it did have that dark air that vampire stories have. They can't go out on the sun without the ring, can't get inside another person's house without invitation, they can morph into another animal provided they are strong enough, the blood exchange to be a vampire, the feeding on human to ve stronger. I want those dark stuff.
It makes the story much more complex.
In Anne Rice's vampires, they also need to drink the blood of their maker to be a vampire. They also die from sunlight unless you are an ancient one.