In one manga series, a vampire says she doesn't need to bite people anymore, because she can order (lab-grown) blood from Amazon, which she stores in her fridge. He even freezes it and eats it like ice-cream. She stated that living in the past was very inconvenient and she disliked biting people. She's grateful for modern conveniences.

I hope this innovation will spread quickly, because it would be very helpful. There's a shortage of blood after all. I await a future when no one needs to donate blood.