Out of curiosity, is this purely enthusiast and hobbyist or do people do this for more than recreation? Maybe there's say, large industrial machines (think lik

Out of curiosity, is this purely enthusiast and hobbyist or do people do this for more than recreation? Maybe there's say, large industrial machines (think like an oil refinery), infrastructure level computers (think the elevators of a skyscraper built in the 90s) or say, shipping vessels stuck with these chips and this is actually the cheapest solution, I have no idea. It looks like the end of the line here was the MC88110 in 1992. Don't get me wrong, hobby away, I'm just curious if there's any production reason for this.