You need variety of games, that's what makes shorty's cool and unique.

A classic EM like.....Centigrade 37
An early SS pin from the 70s like.....Countdown
An early 80s bally classic like.....Paragon
A mid 80s Stern wide body like....Split Second
A double leveled classic like.....Solar Fire
A Pat Lawlor system 11 like.....Funhouse
A dose of Ritchie flow like.....Star Trek: TNG
A glimpse of the Brian Eddy factor like.....Attack From Mars
A introduction to the master Nordman like.....White Water
And top it off with a modern classic like.....Tron LE

Not to get this thread off track, but ops actually charge a dollar a game in WI? That's outrageous!!! It's hard to convert new players with that kinda price point. Should be 50 cents/game for Williams/Bally Classics and Sterns, and MAYBE have the brand new Stern be 75 cents/game. Maybe.
System 11s and older SS games and EMs should run on quarter play. Charge less, people will play more, eventually you will make more money because you are appealing to both the hardcore pinhead, and the curious novice.