At least if I don't want to play them now I probably won't in 40 years (In all serious, I do like the new games too.)
It is kind of crazy seeing where technology is going these days. Obviously we are now a very "throw it out and replace" society and pinball manufacturing has represented that as well, and as depressing and expensive as that is now, the real problem obviously comes when they stop producing certain things (like circuit boards).
Let's be honest. As much as we say "It's not right! Think of the future of pinball!" in the end it's all about the money. I am sure the manufacturers care about their customers but are not losing sleep on machines that are out of the warranty period/off of the production line. Simple business, unfortunately.
I don't see this changing. If I was in that position, I don't know if I would make the decision to change it either, to be honest. Taking a constant and consistent financial hit to help preserve machines for 30 years from now probably wouldn't be seen as better than taking a financial hit assembling a new single entire circuit board/extra batches in advance for a machine in a short warranty period.