Like others said, people are still running pins from many decades ago. It seems like when there is a demand for a part/fix, someone creates a solution. An example is the AV board in wpc95 games. Pretty much impossible to find a direct replacement but there is a solution using a pinsound board. With all the spike games out there, I seriously doubt they will all become garbage anytime in the near future. Mostly guys complain about cost of repairs and not that repairs are impossible.