Not for awhile now. Human blood... think of it like alcohol. It's very strong, and it's easy to get used to having it. But if you don't take it from a bloodbank, you get it from people, and then you have death on your conscience. A lot of vampires wouldn't care, at least, not the ones like me. When you're turned into a vampire, you lose your soul. That makes it easy for you to kill. Me, I got my soul back, and for a very long time I lived on the blood from a butcher's shop. Pig, mostly, occasionally cow. It's more of a cheap beer to human blood's fine wine. But it's better, in that you no longer have to worry about killing to get what you need.
A blood bank is a good stopgap measure, because it will keep you alive and get you going, but it will also get you hooked if you're not careful. That's why I'm looking to make my own connections somewhere, there's got to be a butcher or a slaughterhouse close by that I can make a deal with. I don't want to go back to drinking human blood, because that just increases the temptation.