The lawyers had no problem making lots of many with first-to-invent since a patent dispute was a long arduous process of attempting to document the timeline of

The lawyers had no problem making lots of many with first-to-invent since a patent dispute was a long arduous process of attempting to document the timeline of an invention that frequently ended with a judge having to decide a case where both sides present equally plausible claims. First-to-file gives a hard record of who wins when two people create the same invention in a short period of time. Neither situation is well suited to software patents because software patents shouldn't exist in the first place.