Re: "unique screw head types and gluing or soldering components"
Indeed. At one point in time, if a "switch" in your logic unit went, you could unplug that valve and replace it. Got a bit harder when you had to unsolder the transistor and replace it... then of course you could swap out that 16-pin DIL package using a chip extractor/pin straightener/insertion tool... Then you had to invest in a SMT desoldering tool... and so on and so forth...
Biting the hand that feeds IT
