People tend to romanticize vampirism everywhere. It´s really not that fancy. To drink blood all day and not eat anything else. Trust me, it doesn´t feel too nice when after a night of feasting you wake up your stomach full of blood and your mouth is filled with old blood that varies in color from red to brown and black. The taste isn´t very appealing. At least it´s not to my liking. And I really don´t feel all that vigorous afterwards....