A big part of the game is played before the matter is even played out in the court system. This part is much less expensive.
It's one thing to be threatened with a lawsuit, but it's another matter once the paperwork is filed.
When I was hit with a revenge suit during the first bubble, the single, asset-free me had a different reaction than some of my peers who had families and much more to lose.
There's a lot of psychological warfare going on. When a process server shows up at your doorstep and serves papers to your spouse at your partially-paid-for house, things take a turn. Any sense of righteous defiance you might have starts to waver at this point.
The plaintiff in my situation got a lot for the 20-30K they probably spent on suing us. Without going to court, they shut down an entire company and made over a half-dozen people unemployed -- edit: while making them pay for their own legal fees too --. And they got the satisfaction of a "moral" victory for chump change. Never mind that most of their claims were bunk.
So, in a nutshell, it's not always about going to court.