Generally vegans that do it for moral reasons are opposed to eating meat because they either 1) Think it's wrong to eat another living animal for food, usually with an appeal that all life is equal, which I disagree with. 2) Think it's wrong to take part in an industry that needlessly abuses animals just for profit. I agree with this one more, but it's less common. I like meat because it tastes good. It's that simple to me, and it doesn't bug me that we kill animals for meat. We should treat them better, though.