As of this post, I've had 15,152 total clicks. Also, earned 47.50 in commissions.

Thus the math:

$97 life time membership - $47.50 = $49.50 / 15,152 clicks = $0.003 per click

I'm actually paying less than $0.01 per click at this point!

And that's not even including some banners I deleted at the beginning before it occurred to me that I could always just edit the banners to keep the total clicks inact. Otherwise, the total number of clicks would have been even higher, probably a couple thousands more.