All of my "trail" Garmin GPS units still work like the day I got them. That includes my first unit - a GPS III+, a Geko 201, a Geko 301, and my current main unit - a GPSMAP 60CSx.

I've gone through two Garmin NUVI units for my car. My first one stopped working suddenly one night in a pouring rain in an area of Detroit that I was not familiar with. I turned it on, the screen flashed a bright white, and then nothing - ever. My smart phone had barely enough battery power to allow me to find my way to the interstate so I could figure my way back to my hotel on my own.

I'm now using a second Garmin NUVI. So far so good.