most of the disc based consoles can be fixed. There's a lot of youtube videos on how to fix them. Some are simple, some require some pretty fine soldering skills. If that's not your thing there's tons of services out there. I'd never throw anything away, even if it becomes a parts donor later.
I've had amazing nintendo, super nintendo, atari, sega, genesis, cd, etc. collections that I've sold off when i lost interest or fell on hard times. I can tell you I'd pay double to have what i sold off back, and it'd still be worth 10 times that... The regret is real.
Since the last sell off, I've been steadily rebuilding my collection. There's a bunch i cant afford now that I once owned especially some of the Saturn, GameCube, neo geo, and snes games. I absolutely take value into consideration. I buy games in hopes they'll appreciate. Some I'm considering using a grading service. I've chosen not to in the past because i would give up access to the game but with the retro systems and virtual consoles there's always options. Some of the games I really want to have graded and encapsulated still aren't available except illegally so I've held off, but if stuff the Rule of Rose and The mis adventures of Tronne Bonne continue to rise I'll be ok going without just to protect the game.
I've also started buying special editions and limited release type games in hopes they'll appreciate. I've got two sealed mario kart live home circuit and two sealed super mario 3d collection games that I'll likely just put up and hope that appreciate. I've also got the ringfit and all the labo stuff as well in same condition.
I'm not quite there yet but soon I'll have to have a room just dedicated to games and collectables. I've got so much in storage and still collecting that at some point it'll have to become a factor in a new home purchase.