Re: "$75M....after botched SAP upgrade"
Isn't the lack of such lawyerfests a mystery given the number of stories of discontent with SAP implementations ?
There's been a few others (eg British Gas/Accenture), but the buyer needs to be very confident that they kept to their contractual obligations, otherwise they won't win. And since much of the detail becomes public in a court case, that's high risk. In most failure cases, all parties are at fault, in which case the chances of winning are small, and if you don't win (certainly in UK law, though not US) you can end up paying both sides legal costs, as well as possibly opening yourself up to a counter-claim for reputational damage.