To the original topic, when has any collectible hobby market ever followed any other hobby market exactly? Pinball is unique, with it's own challenges in it's supply chain and a demographic that is not easy to pigeonhole. The only thing you can be certain of is that next year will not be like this year, and that will continue to be the case year after year.
The LCD subtopic was interesting, but honestly it seems to only benefit bystanders. When I play Tron the ball is rarely trapped so I never see the screen. I'm always playing with my sons at home and they know that part of the job of the bystander is to call out whenever the screen tells me that I should be shooting for something that isn't obvious by the playfield lamps.
That may mean I need to learn the audio calls and lights better, but also points out that not every game is stop and go and directs you to 'look up'. Our FastBreak table on the other hand does stop the game and actually speaks to you and says "Look UP! blah blah blah...." basically saying hey dummy, stop looking at the ball and table and look at the backboard where there is another ball and flipper to use...
No matter if it was an LCD screen, a cannon, a flipper, a rocketlauncher, 3d dancing martians, or whatever device they add to the backboard it's not where 99% of pinball players are focused 'while playing'.
Would it be cool to have LCD, lasers, smoke effects, flashing lights, toys, etc on the backboard? Sure, it's all cool. Does it change the way the game plays... sure, some games hold the ball and have you interact with the backboard by watching a clip or audio or flipping something around. Does everyone want every game to 'pause' and make you look up.. nope.
I want LCD's on my backboards because I want more information displayed. What ball am I on?? How much did that last switch award me? How fast did the ball move when the rapter pit kicker just threw it back at me? What time is lunch? How many texts did I miss while playing this game? Cool, load it up. But just don't expect me to read it all while I'm playing Pinball