My dad played a few games on several pins while visiting during Christmas. I told him a few items to hit on each machine. When he got to TZ he just kept playing. That was the only pin he played after he got to it.
He is not a pinhead but he said the sounds were what drew him in. He liked how the pin speeds up during don't hit the door, or the put it back when "the little white ball" comes out. It just drew him in more as he played. He would wake up and play and keep going back all day until bedtime.
I moved the invisiglass from DM after he started to play it a lot and the sealed the deal, he did not play anything else after that.