The power of "compulsion". Commanding others to do your bidding wouldn't allow for a lonely life. Imagine the potential for that. You could walk as a lion amongst sheep.
Ok, now I sound more like Klaus. I think I'm turning.
I can totally get behind the feeling of having power.
But imagine if you were a couple of hundred years old. You've watched your friends and family all die, potentially having killed a couple by accident when you first turned.
If you were a more traditional vampire, you wouldn't be able to go out during the day, which would suck. I'm not a huge fan of the sunlight, but still, it's nice to see it occasionally.
Idk, the power is compelling, but I'm not sure if it's the life I'd pick.