I have been tempted to get an emulator console, but they all have brighter, higher resolution screens and shorter battery lives, so I don't actually know if I'll get in the same "flow". Maybe I'll reassess after I finish this stack of JRPGs (which may take a decade).
Once everything became "connected" (around 2010), obsolescence became inevitable. That Psion5 or Zen Stone can remain timeless because they will never sync a contact list or download a patch. The owners know what they do, and seem confident that they will not fail.