Doc Mack, owner of Galloping Ghost Arcade, has posted an updated video of the arcade. There are a LOT of changes since John visited there awhile ago. In particular, there have been MANY cabinet upgrades including nearly all pre-crash games (1982 and prior) upgraded to original cabinets. (The only pre-crash games not yet in originals are, I believe, Pengo, Crazy Climber, Mr. Do, Space Ace, and Bosconian.)
Also, in a recent audio podcast, he confirms that any conversions in his arcade were already converted before he acquired them... and has a standing offer to anyone looking to restore one of his conversions to an original (e.g., Tempest) to give them an empty cabinet for free and he would put the converted game in a different empty cabinet he has on hand.
Yes, it is still concerning that he is so quantity over quality focused and 10-15% of the games on the floor are shut down/broken at any given point in time, but I think you'll be impressed with some of the improvements that have been made. He definitely hired a stud technician who has been doing a lot of great work... including replacing the joysticks on Robotron that Gregg called out in John's video.
Give it a watch!
https://www.youtube.com/watch?v=ytxeWD-GHG8