My dad had 420k miles on his 2016 Suburban before it was totaled. Original engine, rebuilt trans at 190k. He was a NYC UberSUV driver before the pandemic.
My LX isn't in the running for highest mileage, it's barely broken in at 116k
I couldn't tell a difference going between the comfort settings on my AHC until I replaced the 4 accumulators on my 11 LX with the $599 eBay set from Japan and then it was a significant difference
The 200 series LX was a lot more than badge engineering. This would work more easily on a Tahoe to Yukon to Escalade than on a 300. Unless you plan on stripping out AHC, adding KDSS, swapping interior trim etc
The ML Reference in the LX is a great sound system. Lacking a bit in power if you compare it to the current LS but great clarity and very good quality components overall. The system + the heavy sound deadening in the LX makes for a great listening experience when listening to good quality source...
Several of my friends have 400k+ miles on Cummins rams. Mine didn't give me trouble over the 80k miles I put on it.
My Ram 2500 on a Carli pintop suspension and 37s rode very nice and towed everything I own and my wife's car across the country when we moved. The interior on the new ones ranges...