A few months ago I bought a 4th gen kindle, the one with all the buttons all over it, and I do love it dearly. This kindle was a bit busted up when I got it. The person who sold it to me says they're not certain but they're pretty sure it used to be a display device in a store, which would explain the scratches on the casing and the one on the screen that cut deep enough to damage a little bit of the e-ink. These don't affect my reading experience at all so they're pretty easy to ignore, but sometimes it does make me wonder how long it has til the e-ink gets stuck, or until one of the more essential buttons fails to work (esp since the right side experiences 'sticky page' issues, where when you go to flip the page it will load two pages at once and end up skipping the one you were turning to. Sometimes it takes a few tries of back-and-forth for it to settle on the correct page, but the left side buttons do not have this issue yet). But one thing I've come to understand about this kindle is that you can under no circumstances have the device on when charging, which is something I didn't expect since this isn't an issue for my 11th gen paperwhite. Both of my kindles are jailbroke and run on KOReader, so even though they functionally work the same (besides one being a touchscreen and the other using buttons) the thing about using it while charging is the only difference in usability and it scares me every time I forget. If you try it, it will cause the screen to completely freeze and none of the buttons will work. Whenever this happens, holding down on the power button the first time just causes the screen to go completely white, and then you have to hold down again for 30 seconds, let go, and then press down again for around 5 seconds for it to reboot. After that it works like normal, but every time this happens it gets harder and harder to successfully get the reboot screen to trigger and I have a moment of resigned acceptance like "this might be the one. This might be the day it finally kicks the bucket." But so far that has just been a bit of over-reaction on my part. This old thing is a tough little cookie and remarkably resilient (side-eyeing most of my past phones as I say this) and I am always acutely aware of how precious it is to own an old piece of technology that still works and has full functionality, so to everybody old there who also has a senior e-ink device... remember to cherish it while you still can 🥹🥺