FWIW my RM2 is still running well after 4y, and that includes plenty of abuse. I use it for notes at work, keeping track of little league lineups (and so tossing it in the grass many times), and its still a daily driver for me.
And if you leave it unpowered for a few years? I have a journal from two decades ago. Still readable.
And if you leave it unpowered for a few years? I have a journal from two decades ago. Still readable.