The automated test systems have actually been around longer than I thought. Was working on someone's statement the other day and say he has two reefbots (both, but definitely one being repair due to being used as a stand for equipment) and was completely baffled looking at all the reagents inside. Honestly though I don't worry much about parameters in my established tanks and can normally guess what it is when something is off from past experience so I generally only test during water changes or if I'm progressively trying to change a parameter. Anything that can't be tested with a probe, except maybe salinity, I don't feel the need to have tested everyday or even more than that. Just hour it's worked for me. The only parameters I hate having to test alk and Ca, but can't skip on those. If I don't change up anything about a system, how I feed, what I feed, or stuff like adding fish and coral, my tanks stay pretty consistent.
I would like to see other automation get simpler and cheaper. I honestly wish there was a system that could do automatic water changes with small reservoirs progressively throughout an entire day so I can be as uninvolved as possible. I'm sure you could potentially automate a tiny mixing station to progressively refill and change 5g every couple of hours but it would be a pain.... And likely expensive.