As for PS3, it would be stupid not to. ERR makes available like 5 generic sound files. By licensing PS3, they get access to hundreds of more accurate files, files with variation, and the potential for upgrades or improvements to the system done by whoever is taking over DCS. Why would you not do that? They'd be smart to dump TMCC at this point, as the limited options are far outclassed and the system is essentially dead technology. A license to use the DCS environment is a first, and is a massive upgrade over a TMCC sound file that is basically "Generic GE" or "Generic Alco", etc... noise.
Not to mention, PS3 has DCC onboard. As much as I am not a fan of using PS3 as a DCC decoder, the factory can continue to deal with a single wiring harness, regardless of whether its 2 rail or 3, which probably means the continued ability to sell these things with a 2 rail option. I'm here for it. Since the wheels are interchangable, they can continue to offer the 2 rail locomotives with PS3 so that the 3RS people who are buying them dont have to worry about the engine being DCC only, such as if they put ESU Loksound in it.
Atlas has managed to get a few items produced, but that's way less than the stuff they're sitting on.
As for TMCC, it has several overwhelming advantages over DCS:
- Reliability. And reliability trumps all else. What good are "cool" features when the train won't respond? TMCC works and its small number of issues have proven solutions, unlike DCS with its 5 TIU hardware versions, countless software revisions, book of spells and incantations, and thousands of "Engine not found" posts. The numbers don't lie. Any objective comparison of problems between systems over the past 15 years prove TMCC's reliability over DCS without any doubt whatsoever.
- Open to 3rd Party innovation. By putting the TMCC codes into the public domain, Lionel sparked innovation from 3rd party entrepreneurs such as IC Controls, Digital Dynamics, Electronic Railroad, TrainAmerica Studios, and Z-Stuff. And licensing provided us with TMCC equipped locomotives from K-Line, Weaver, Atlas, and 3rd Rail.
- Upgrade path. If you really need all of the sophisticated "bells and whistles", there's Legacy. And the sound in those locomotives is superior to anything else around.
Have a nice day,