Why don't we have linesmen for all games?

The SAL attempts to provide assistant referees for all Senior Division 1 matches. Beyond this it does so where it can. However, for every match that receives two assistants, two lower league matches must go without league appointed officials. In addition, some clubs balk at the cost of a referee and assistant (each team, home/away, pays for one assistant). While we are receiving more comments about refereeing appointments than anything else, it's not practical to take referees away from games to create a better experience for a small few.