I totally see and understand your point. That is where I was previously. Carbs are stupid simple devices. Not much to them really.
Same can be said with points and condensers. Simple devices. I added a Pertronix to my 62 Belvedere ages ago to see what I was missing. And I have had trouble free miles ever since and it runs better without me having to adjust the points.
I stepped outside of my comfort zone and tried it. Lots of guys have a sack full of spare parts in the trunk (myself included) to be prepared in case of disaster. I've never needed it. The VR, the points, ballast resistor, plugs, fuel line, etc, etc.
I don't worry about all that anymore. I just drive my car and enjoy.