This post got me looking into my DS/3DS collection and I discovered that I actually bought Chrono Trigger at some point. No map or poster as far as I can tell, unless it's inside the box.
This was years ago when none of this stuff was ever expected to land on Steam. Now this version has been superseded by both the Steam and iOS versions.
Incidentally I also found sealed NDS copies of Ghost Trick and GTA Chinatown War,s and it occurred to me that I rebought all 3 of these games on iOS. Mildly amused that iOS of all platforms is where these games are preserved for now.