I think the ROI math for the additional protection only works out if:
1) You drive lots of miles, and the extended interval keeps the truck earning money rather than lost productivity during downtime.
2) You drive lots of miles and are already paying a lot of money for dealership oil changes with $300 boutique oil and the $500 amsoil kit pays for itself in saved oil changes and downtime.
3) You drive lots of miles and you're a garage scientist. You can put together a kit for $100 and the additional protection/OCI interval is a part of your truck fiddling hobby.
Else, with modern oils, a 5k OCI for us short tripper low annual miles types isn't harmful to the motor. Oils on rebate aren't expensive, even big brand synthetic diesel stuff. (We just had rebates from Rotella, Delvac, and Delo). The hour it takes me once or twice a year to change your own oil just isn't that big of a loss and easily fits into an after work session with tire rotation or some other job.
For me, changing the oil is cheaper than a bypass kit, fancy oil, and requisite UOA monitoring to stretch the interval.