The pinball landscape has changed also, there are a lot more other high end pin choices to blow $7500 plus on now.
Zombie Apocalypse by Ben Heck
WOZ by JJP
Magic Girl by John Popadiuk
ACDC LE by Stern
Kingpin by Gene Cunningham IPB
Predator by Skitz Pinball (pricing not confirmed but the plans are to be a boutique run of 200 so expect $$$)
Half of the above players are adopting newer technology to justify the high price tag and the other half are relying on the "same old same old" and playing the nostalgia card to justify their tiered price tag.
Be interesting to see how quickly their customers catch on to that fact...... 
You are forgetting ‘Communication’
Jersey Jack has kept all the Woz Buyers updated as to the progress of the game
Ben Heck has set up a website and has some interesting youtube vids
Stern seems to be slowly getting information out about their machines
But all we have ever heard from Gene is third hand reports that he is getting the boards reengineered
