I use full synthetic, buy it on sale , do it myself. I also use the oil life monitor, was down to 3% last change with 8300 miles since last change. Big chunk of that back and forth to Florida in the winter from Southern Ontario , all highway. I would say 3/4's of our driving is highway.
If you pay someone to change it then I get why some feel synthetic isn't required, blended can do, the price you pay is stupid at times for synthetic.
I am also a member of the Corvette forums, my god people get carried away about oil changes. The amount of times spent on this issue is by no means commensurate with the maintenance issues most people have with their engines related to oil and wear and tear.
I have a routine with new vehicles, keep it simple. First change is at 500 miles ( having worked in automotive plants there are many times engines get dirt and burrs in them when machined and assembled - first few miles all those parts are getting to know each other) and then after that I follow the oil life monitor. Always synthetic, it is superior, it also adheres to parts unlike regular oil so cold starts have some lubrication. Learned that from Bob the Oil Guy. I do my own changes because I have time and it is done right, no appointment necessary or waiting in line. Forty-five years of driving never a problem due to engine wear, lots of problems with everything else it seems. Although the last generation of cars/SUV's are just so much better built than previous generations. My last SUV a GMC Acadia I had no warranty issues at all , not one, just regular maintenance and at the expected mileage , time frames. The Ford has been good as well so far.