I have around 400 board games. We love risk legacy. I have 3 copies that I play with 3 different groups.
In regards to Dark Tower. Bulbs are just 555 pinball bulbs which is great. but make sure your motor is moving. Sometimes they need a nudge to get going and you have to run them awhile to get it working good.
Did you guys see they are remaking fireball island. My buddy is working on that game and doing the sculpts. They are redesigning the board so it works better too. Lot more options.