Coffee makes me like things

I'm considering becoming a coffee addict. I'm starting to think it might make me much happier day to day. Currently I generally only have coffee maybe 2 times a week (usually Sunday morning at church and Thursday afternoon at the department seminar). Yet I find once that caffeine gets coursing through my veins, I am much more interested in using my brain. I enjoy seminars - even when the topic is dry and complex. I become fascinated with fellow grad students' research updates, dissertation proposals, or thesis defenses. I even become ever so slightly interested in my own work. I've previously avoided drinking excessive coffee so I wouldn't get to where I need it to function. But what's the point of functioning sans-coffee if you're bored all the time?