I like and support location play, but it's a bit of a red herring, particularly if you are concerned with hooking a new generation of players. kids and young adults do not drop coins into game machines, be they pinball or video games or otherwise. everyone now has a nigh-infinite free arcade in their pocket. profitable, widespread casual location play is dead and it's not coming back. most people simply aren't going to pay money (assuming they are even carrying cash) when they can just whip out their phone instead.
yes, kids will pump tokens into redemption games and claw games but that's another red herring -- those are machines that tap into the gambling mechanism in the brain, not the gaming mechanism. Pinball is fundamentally a game, not a prize lottery like redemption / claw games. shoehorning ticket dispensers (even with JJP's well-intentioned custom code) is really a round peg in a square hole and it's not going to change the fundamental difference in appeal between pinball and lottery/gambling games.
in my opinion, the lone viable long-term future of pinball is *structured* location gaming in the form of leagues and tournaments and other ongoing contests. barcades are cool, but the pins there are not going to grab or hold a clientele without some kind of structure around the gaming to make it seem to matter a bit more. leagues and tournaments do this very well. but there are other opportunities, too: maybe even something as simple as prominently posting high scores on games and awarding prizes for weekly or monthly grand champions. generally anything along the lines of adding goals and continuity beyond what the games themselves intrinsically offer. Look, we here on Pinside all love pinball for its own sake, but those additional hooks are necessary if a broader audience is sought. and those hooks would be a lot of fun for us hardcore fans as well.