We claim to be moral beings who do not act merely to satisfy hedonistic impulses. We would not want to live in a society where people were free to satisfy all their cravings freely, where the strongest could cause suffering for the weaker if they wanted to do so. Likewise, how can we justify satisfying all our cravings for animal products, when animals must suffer in order to provide them?
Happily, there is nothing inherently less satisfying or more expensive in a vegan diet. Beans and rice are less expensive than beef or pork; heating up a Boca Burger is less expensive than buying a Big Mac; and most people find vegan food to be as tasty as non-vegan food. Even if this were not the case, most vegans don’t consume animals or animal products because they do not want to be the cause of needless suffering, regardless of the convenience, taste, or cost. Living an ethically consistent life is more important.