Colorado Hirailer:
"Not resistant to new technology....THAT WORKS BETTER AND LASTS LONGER, AND IS UNIVERSAL..."
Careful, Colorado - you're making too much sense for the Millennials (of course, how many of them would be reading this Forum?)
To a point both depressing and liberating; this would apply to many of us, though certainly not all. Also, it applies only to those of us "model rails" (as they used to say even before my time) whose primary enjoyment of this hobby are the trains (real and model) and attendant items, and not the underlying "technology" that makes them - the models - run. The tech is just the appliance, not the point, to us.
The point is: I'm 69 years old. Based on my lifestyle, health and family history, I will probably not live much past 80, at best. My grandmother lived to be 99; her husband, my grandfather, died before 65. Similar family patterns all over, though the "long-livers" are common. So - 10-12 years and I'm outta here.
I have TMCC and extra, unused CAB-1's, Powermasters, a TPC400, command bases. Many of these things have been around 20+ years and show no signs of going bad. (The CAB-1 buttons are the Achilles heel - but I corrected some of that.) My TMCC/ERR locos (and a couple of Legacy types) have been reliable and not temper-mental. 3 radio boards replaced, so far. A small percentage.
There is no reason to think that the bulk of my equipment - not 100%, certainly - will do anything but last me the rest of my life, or the part of it where this stuff matters at all, anyway.
Depressing - and liberating. Go ahead with your batteries (I would have liked that - lose the middle rail and 2-rail wiring headaches) and your Bluetooth and your iPhones. Best of luck. I won't be needing or buying it. TMCC equipment and kits? Yeah, I'll still buy that for the foreseeable future.