According to the game's producer Yoshihiro Sudo in a 2000 Arcadia magazine #3 developer interview, he acknowledged that the line charge for the arcade release of the game in Japan charging 13 yen per minute, meaning 50-60 yen per game, was a controversially high rate that the developers did not want to increase and that fans complained about for being too high, but that it was the lowest possible price they could charge the game at for the time being. He then expressed hope that the cost would lower as more people played the game.
Contributed by ProtoSnake