Wow, so much discussion over a product that most folks wouldn't even consider owning. Well, I like these tenders, so if anyone has one you want to dispose of, shoot me an email.
These tenders are decidedly low-tech, but are also easily improved and have a simplistic charm. No worries here about blown speakers, faulty circuit boards, pinched wires, broken tether wires, etc.
1) I replace the snap rivet on the trucks with a stop nut and truss screw to eliminate wobble. 2) I replace worn traction tire on the sound wheel with a couple of large, wide rubber bands. 3) Using a Dremel, I enlarge and lower the mounting holes in the tender for the sound wheel, which improves the rotation of the sound wheel, even on tight 027 curves. 4) I add some weight to the tender frame, to enhance contact of the sound wheel to the center rail. Not to mention repainting of the shell and adding details to enhance the appearance.
Yes, compared to the electronic options today for realism, this cannot begin to compare save for one small thing missing today from the train world... a little thing called "imagination." There was a time not so long ago when air whistles and bicycle buzzers were the paramount realism in toy trains.
I like this sound wheel way more than I like the crew chatter. I've stood along side many real trains and have never once heard train crew chatting over the overwhelming sounds of a real train. And yet the crew chat is a standard feature today (even though you can turn it off). Maybe it's a little thing called "play value," even though most prototypical operators assuredly wouldn't use that term.
Which is, I'm certain why Lionel MPC developed this and put into starter train sets - not higher end separate sale steam engines aimed at the then-growing collector market.