We like the flavor. We can't be addicted to nicotine. Then we wonder if maybe we're ignoring the facts. After a few unsuccessful attempts at quitting, we begin to realize that we are hooked. Consider nicotine addiction and think of the lengths and expense to which we go to feed it.
Social activities become difficult, a nuisance.
We spend a lot of valuable time planning ways to stock our supply and keep it available. We go to great lengths to get our fix, like driving in bad weather to get tobacco when we wouldn't go out to the store for milk. Consider freedom from nicotine. Quitting is a personal challenge. We begin to realize that if we quit, we'd probably be better off.