Which of the following was NOT listed in the text as a benefit provided by the invention of the bill validator$/$acceptor$?$ Elimination of frequent, unwanted, and lengthy gaming interruptions resulting from hopper$-$related service calls Customers were no longer required to transport heavy$/$bulky buckets of coin throughout the property Considerable reduction in the cost of games, as hoppers were no longer needed Less expensive and time$-$consuming drop and count processes for operators