Re: At the risk of sounding extremely harsh ..
TN asked, "...why all the thorough investigations and numerous days in court?"
It's not *that* expensive. The investigator spent maybe a day or two testing the air, a day or two writing a report, and a day or two in court. That's probably less than $10k.
Well worthwhile. Even with all the other expenses.
Heck, at my company we might spend weeks investigating to find a replacement battery (for a complex avionics system). $40k studies are common.