Members of the media line up to get inside Manhattan's criminal court.ADAM GRAY/Getty ImagesDonald Trump's hush-money trial is proving beneficial for professional line-sitting businesses.Limited courtroom spots and long wait times are driving the demand for their services.Line sitting is a controversial practice, especially for courtroom spaces.Donald Trump's hush-money trial at Manhattan's criminal court isn't being televised, and with limited spots inside the courtroom for the public and media, seats are given out on a first-come-first-served basis.But for those who don't fancy the inevitably long queues, there's another option — hire someone to do it for you.Professional line sitters, who will wait in line so you don't have to, have been cashing in on the former president's trial.