I'd have to believe the actual court costs are higher than that. But as long as the entire court costs are paid, I don't care. I think the only legitimate complaint about frivelous lawsuits (aside from the fact that a lot of judges are insane) is the cost to taxpayers.
I'm not sure if the same standard as tickets applies, since tickets are for criminal offense and fighting a ticket wrongly pulls a cop off the street to fight you in court. I doubt plaintiffs ever pay costs for court fees unless countersued.
What you've really got to do is hit lawyers where it hurts for frivelous cases. but I can't really think of a decent way to do that.

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"Man lives in the sunlit world of that which he believes to be reality. But unseen by most is an underworld, a place that is just as real... but not as brightly lit... A DARK SIDE!"
-opening from Tales From the Darkside