My job basically has me going through used games and consoles and bundling them together so they look all nice and dandy. For me, we get so many Xbox 360 Consoles in it's not even funny. Same with PS3 systems. Twice I've seen a Series S, and never an X or PS5. A few PS4/XBOs came in tho as did switches, even a TOTK OLED.
I dunno which I hate dealing with more: the stanky awful 360s that have a skunk smell on them that never goes away (almost always associated with a RROD and usually being the 2005 launch style, rather than a S or E, the latter of which is way more reliable and I've only had one of those come in bad), or the Xbox One systems that are fine in every way except needing the fucking internet to format them/deleting user info off it for selling the console. Jesus christ I thought DF was overhyping Xbox DRM to an extent but no, the XBO-onwards really are that anal about you being online for almost anything. You can't even turn off the system post format without connecting to the internet for validation, or else it'll corrupt and make you redo it all over again. Such a huge PITA and e-Waste magnet right there, but at least most of em come in clean, better than that horrid skunk smell the 360s often have which makes me ill at times.
Oh, and yeah, going through the used games I'm amazed by how much disc media got better with the PS3 and onward. Sooooo many 360 games come in with scratches or cracked middles or other damages to the point i can't bundle it or even find a way to clean it to work on the system, yet PS3 games take extreme effort to become unreadable. When A bunch of 360 games come in, a good chunk of them are almost always damaged beyond repair, and it's usually GTAV/COD/AC/NBA games at that. I can't imagine why people would handle their games or systems so poorly when donating them.
As for my personal experiences as a buyer, well... Kid me basically got to experience tons of N64 games I never got to play new due to my birth mom frequenting a pawn shop all the time. Bad news, she'd steal most of my collection to buy shady stuff there when making those trips, so I'd almost always lose something in exchange for a "new game", and then be blamed for me "misplacing it."
Per my grandma's diary, when I visited her for a hoilday back in 05, apparently my birth mom tried selling my Pokemon Emerald at one point while I was away for that, to which I got so enraged I caused extreme damage to the inside of my mom's apartment when I got back looking for it (since it was the first thing i'd play on the thing if I wasn't busy with another game). Hastily, she went back to the pawn shop, got the game again, and took it back in the nick of time (and tried to pin it on my grandma so I'd end up hating her for what my mom was actually doing). Considering how much those games were everything to me (and how much they go for now), I'm very glad I kept all the Gen 3 mainline games at least, as when I got relocated away from my mom, pretty much everything not yoshi's Island GBA or Pokemon Gen III got pawned off by her en masse, including some pretty darn rare gamecube games (RIP Double Dash, Melee and Harry Potter Sorcerer Stone for some reason)
Luckily my used game experience got much better post relocation as my grandparents would take me to blockbuster and I'd buy a bunch of their used GCN stock if I liked a rented game well enough, so I had a nice collection of that growing up. Same for the GB/Wii for a while, though nothing too crazy deal wise. My biggest score from a used store was like back in 2019 and DQIV DS was on a gamestop shelf for $10 with nobody caring about it. I nabbed it CIB and to see how much it shot up over the years is astonishing.