I love my customer's maintenance department, they're unusually thorough and attentive to …

… I love my customer's maintenance department, they're unusually thorough and attentive to preventative maintenance, greasing and oiling and replacing wear items, root-causing failures and keeping the machines in good working order for decades. But when you keep fixing each individual small part that breaks, eventually the market moves on and you have to throw all the replaceable parts away and start over. The process requirements haven't changed, the weldments and castings aren't broken, it's just that you can't replace a failed servo drive or Core 2 motherboard or ISA card because the supply chain gave up on them 10 years ago. There's no great advantage of Windows 10 LTSC and a 64-bit Arm controller over Windows 98 with 56002 ISA cards except that I can buy the former today and I can't buy the latter because no one makes them anymore. There is no control OS or hardware supply chain that lasts as long as military, industrial, or scientific equipment can be made to last. …