I realize the vampire lord is awesome but the sunlight thing is annoying as anything and using auriel's bow or waiting till night every time is just a hassle.

people like to play in different ways, ever heard of role playing? playing at night creates a whole new experience, and if you cant get past the hazle of waiting a few hours then i'm not sure if an RPG is the thing for you

Because we can. Simple as that.

why do some like to be assassins?

why do some like to be a thief?

why do some like to be werewolfs?

because they are criminal scum, who violate the law!

Halt! pay the court a fine or serve your sentence

It's not supposed to be easy to play a cursed creature.

Personally I prefer hunting and killing creatures, not becoming them.

Why do you like being what you are in Skyrim? People enjoy certain playstyles, who are you to question it?

For RP purpose at least mine is.

Pretty much what I have to say about it too.