Could you provide a citation about how modafinil has fewer side effects then, particularly, (black) coffee?

What I've found in the literature says that longer term studies on the effects of modafinil are needed http://www.ccjm.org/content/74/8/561.full.pdf (2007)

While the WSJ ran an article, http://online.wsj.com/article/SB1000142405274870327860457462... , pretty much saying that black coffee is at worst a wash health wise (though I do note that they said caffeine has a pro-obesity effect and Modafinil an antagonistic effect (it's wiki article says as much)).

My point is that, from what I know, coffee isn't that bad. What information do you have that counters my notion or that modafinil is worth the unknown risks? Preferably with citations, please and thanks. I'm very curious about this topic for obvious reasons.