They were already less cool as of late. Gone were a lot of the “one game per machine” things and instead they just had a bunch of crane games and these “multi-title” machines with standardized controls. So, you could sit anywhere and play the same thing unless it had unique controls/displays or could still justify its own cabinet.
Those already was only one machines or two, if at all. Also a big issue with arcade games is it's quite expensive (100 to 300 yens per game), especially in comparison to buying occasions.