I am sticking with rule #1 because the secret is to store your riches after disassembly in an orderly manner where they can be found. All the switches together, all the connectors together, each sorted by type.
Old TV sets don't stay around too long because they get pulled apart for all of the useful items including large HV capacitors, power transistors and heatsinks, all of which then get filed away. Do I need the rest? Probably not, the uses for a SCART socket are few but I do have four in a box (with four plugs) just in case.
ISA hard drive controllers are handled in the same manner unless you know someone who works with older PCs in which case you may do them a favor. Anyone using the Manhattan method of construction knows what to do with the gold plated fingers on ISA cards as they are just the right pitch for mounting ICs on copper substrate.
Finally, a good example of Rule #1. Years ago I purchased a 20-way switch that moved around using a solenoid and a ratchet, it looked interesting but sat unused for years in the switch and relay box. Last year a fellow ham was building an automatic antenna tuner and he was looking for a way to switch the inductor taps. That switch was sold for twenty times its purchase cost and he still went away happy.