Those people who think vampires r all that (i persenally think that also but there r negative affects) like after 3 days you lose 8 hp/sec ur in the sun and ur 50% weaker to fire damage and no one wants to talk to you and you have to use a spell i dont remeber what its called but u get it after being a vampire that u have to use to sell your stuff 2 ppl and you can only drink blood of ppl who are asleep. theres a utube vid that explains this vid search: How to become a vampire on oblivion.