Glad this thread is revived, I wasn't an owner when it started. For the record I'm "Old School" as well, just did my 3rd oil change on my 2015 D and have just over 10,000 miles on it. First change I do quick on any new vehicle, now plan to change at 4,000-4,500. Part of this is my old school roots, but part is also coming from a GM 5.3 MDS vehicle and it's pretty well understood that short changes could help with the GM MDS failure issues that some years had. So, while the hemi MDS seems to be a much more reliable system from what I've read, I'm still going to change pretty regularly.
Also, while I've had my share of bad dealer experiences I have to say in my town we have a few really good dealerships. I'm not saying they are cheap, you have to understand that if you change oil at a dealer you are going to pay for some of that big shiny building they are in. My local Dodge dealer has always been great, just changed hands from the long time owner to a long time employee, you can walk in and shoot the breeze with the owner, service department is on the ball and gets you out in a reasonable amount of time. I plan to change oil there for at least the first year, will likely do my own after that. I like to establish a record of regular maintenance on their system, for 3 reasons. 1) give them enough business to want to deal with me if I have a problem, 2) show them how well I maintain a vehicle so any problems won't be blamed on neglect, and 3) in the modern electronic world when you sell your used car a buyer can look up the maintenance intervals and events done at dealers, proves how well maintained your vehicle is so maybe gets you a few bucks more.