Look at a dictionary for the definition of the word 'value', it means getting something of higher worth for lesser cost. I do not consider oil analysis to be of great 'value' to the common man even though I know what it does. It costs too much to show things that can be logically deduced without the added cost. There are enough facts in books out there to make plenty educated 'guesses', you might say, that will have excellent outcomes in 99.5% of the cases without the need for splitting atoms on the oil. Very close to the arguing that goes onsite here all day long about say 2/10ths of a degree error in computer alignments, quite simply wasted time there too. I can say that having worked on thousands of vehicles including some pretty high output ones and simply never needed to analyze oil. Gotta wonder how the world ever kept spinning without it in the old days don't you?
Now, if I were in control of a fleet, maybe, but on a single owner vehicle, no way. I've got Bobtheoilguy for that. Being able to read is a far better value than analyzing oil.
Broad stroke? I submit that since most DON'T do it, it REQUIRES a broad stroke, there's far more of us than of you (those who seem to consider it necessary and of high value).....................
Here's some. I use conventional oil at 7500 miles oil changes, the last 5 cars I've bought are still running fine, I can't seem to break them. Collectively 850,000+ miles there and not one analysis, no synthetic oil either. If I go under valve covers the motors are clean as a whistle. Someone tell me how much money I've saved to do other things with.........................................that's value jack.
Not 'willfully ignorant', I have just tuned oil analysis out as nice but not necessary in my world. I do take note also that all the OEMs do not require it to maintain warranties either. I'm just taking the same leap of faith they do.