Exactly, I use to think the same thing! Many legacy system, the industrial machines that run factories, infrastructure, etc. all have hundreds of gauges and som

Exactly, I use to think the same thing! Many legacy system, the industrial machines that run factories, infrastructure, etc. all have hundreds of gauges and some of them do get "watched". Cost of digitization via smart gauges just cost too much and planning that goes into replacing them often isn't tenable. So many instrument readings don't get logged - until some machine fails. There are systems out there, but they aren't affordable to make a broad impact - I hope we can progress to change that.