I have no data other than what I've read, which are mostly other's opinions, but it is interesting that a certified G5 costs $2,395 and an experimental version is $1,340 (about 44% less than certified). The difference in avionics might be where the idea came from. It does seem like a high percentage, but nothing surprises me anymore.
I was once told by a lawyer that anyone can sue anyone for anything...and you have to go thru the hassle/stress/expense of defending yourself. It's a crazy system.
We need to have a law where the losing party pays both parties fees.