Toy trains are electric gizmos. And for me, building my 12' x 30' empire is in many ways an escape from reality (at least once my daughters are tucked in). I know when I am running my empire I am oblivious to the outside world at all of its pressures and deadlines.
For me, one of the primary reasons I came to the hobby a few years ago was because of the Legacy remote control and all the features that the Lionel OS brought with it, including swinging bell, whistle steam and uncoupling at the tender with a remote. Therefore, the advancements in toy trains electronics brought me into the hobby. I would not have been drawn in if I had to use a lever at a stationary transformer like I did at my grandpa's house at Christmas when I was a kid.
I for one hope that Lionel continues to push the electronics envelope. I would like to see a SD card based system with speakers that could be placed inside a box car and receive commands from the Legacy remote. Or speakers with a receiver that would play sounds from sling box-type device. I wish that Lionel engines and now seemingly extinct Sound Station Dining cars had the capability of uploading new sounds, similar to that of the MTH engines. When they get a whistle wrong, wouldn't it be smarter to download the correct track from their web page then to pay to ship it to Ohio? I love my JLC Big Boy, but the whistle is all wrong and there is no way to fix that to my knowledge.
So, I for one am all for the continued evolution of this hobby. Without it, why would it not suffer the same fate as the very steam engines we love?