This year i have bought and fixed two things things that were assumed broken, and all it did to fix them was to connect one wire in both cases.

Pair of B&W M1 speakers that usually go for 250€ here (for one speaker!), bought them for 25€ (for the pair!), spent couple of hours fixing them, just a break in the circuit board:

https://i.imgur.com/X4fn3hS.jpg

just soldered one wire, all that was needed, work fine, though other speakers grill is kind of crap, but they actually sell that as a part.

https://i.imgur.com/6zBGP02.jpg

yes, it has a dent in it, the grills are from metal and can be ordered as parts, does not effect audio quality.

Would never spend 500€ for pair of speakers, but for 25€ they are really nice.

Electrolux vacuum cleaner, that i just took apart, to find out one cable that connects to the motor had shaken itself broken, new abico connector, and works like new.

People assume so many things are unfixable, they never give even second thought about fixing it.