Maryland doesn't have many great places to play because the tax structure for amusements is ridiculous. In addition to Town Hall and Timeline arcade, you could check into the Volleyball house in Elkridge. That is where I play in the Baltimore division of the FSPA.
Game lineup is:
Robocop
High Speed
Corvette
Stargate
Baywatch
Demo Man
STTNG
Medieval
Capcom Airborne
Seawitch
Cleopatra SS
All in good working condition.
Check their website for operating hours vbhouse.com. They often do not turn the games on unless league guys are there, so just reach under and turn the games on. The snack bar cashier should always have quarters, but bring some along just in case.
There is also Crabtowne in Glen Burnie. They have about 15-20 pins, some in working shape, some not so much, although lately the quality has been better. List I found on the internets:
The Addams Family
Bad Cats
Big Guns
Black Knight 2000
Checkpoint
Cyclone
Dr. Dude
Eight Ball Deluxe
Fire!
Fish Tales
Frank Thomas' Big Hurt
Jokerz
Kiss
PIN·BOT
Police Force
Pool Sharks
Popeye Saves the Earth
Road Kings
Silver Slugger
The Simpsons
Star Wars
Twilight Zone
Twister
World Cup Soccer
That is pretty much it for an hour from Fred-neck
Mike