Technology obviously does affect the value of the trains with the exception of Pre-war, postwar, and MPC era.
The type of tech effects it as well as if its working.
Protosound (these locomotives took a big hit in value and can be scooped up because many people don't want them or deal with the clanks of death and the limit of conventional only)
Locosounds (doesn't have the protosound 1.0 issues ,but it has decent sound people liked)
Protosounds II and III
TMCC
Legacy
Lionchief
Lioncheif plus
All the above are still in demand and very popular with many of my friends and club members. Of course the non-high tech stuff is also popular and probably always will be.
I think there should be a new category for high tech with options like N/A, original not working, original working, modified/added not working, modified/added working
and one more category to tell you what tech is like: None (it was removed), N/A, TMCC, Protosound 2, Legacy, or ERR with sound commander, etc.
The above could be turned into TCA codes and that would give you a good picture of the state of the electronics along with the other TCA categories.
