Bad as I feel for Kev, the real story is likely never coming out...100 million (I guess) has been lost to that machine. Any math that comes to light about that machine's history would be very enlightening. Good luck, anyway!
If the betting windows are open, I will definitely take the "OVER" on that 100 million number for "house advantage" alone on the Lion's Share machines.
I will say that shortly before April 1, 2013, the Lion's Share jackpot was
I KNOW this because I was the original author of that "April's Fool prank" thread and I telephoned MGM to get the exact amount a few days earlier for the sake of accuracy.
http://lvadvice.com/forum/index.php?topic=4452.0 Seems that it only increased about $44,xxx.xx since about May 30, 2013 (14 months +). Not much considering the amount of "punters" taking their shot at the dream. Not much played coin in went to build that jackpot.

Would be very curious to see the actual numbers, and wonder if the Nevada Gaming has them on file for individual machines.
I'm not curious enough to try to find out. ::: shrug :::