Obviously not for your big Oracle vs. Google lawsuits or where the entire company is riding on it, but for anything less than that. For example, every public company gets sued by opportunists every time there's a merger or acquisition, or every patent troll expects nobody to fight their case because it's so expensive. There's lots of little things that come up where you just need someone to do the paperwork.
It seems like you could hire a couple broke lawyers to fight patent trolls, and the cost wouldn't run into millions when your attorney books a ton of hours.
I've considered using paralegals to write up paperwork to be reviewed by an actual lawyer. But it seems like there should be a 'cheap broke lawyer' option in between the two, who would probably do a fine job.