Just remember with a no maintenance electronic ignition system; there is no maintenance possible when it breaks down on the side of the road.
Well, let's take the SBC points dist VS the stock HEI, since most of these run that engine.
Points have 2 leads; the ignition switch feed with a resistor wire and the starter bypass feed. The HEI only has the switch feed.
Resistors rarely fail and it will still start with the switch feed, but more to troubleshoot.
Ignition coil is a R&I in either case. Pretty much even there.
Service parts like vacuum advance and shaft bushings about even too, but the points have spring force on the shaft. These should not be roadside fixes. ignition coil negative wire is shielded by the coil cover and short multi wire pigtail from cap to dist.
Changing points and condenser or uniset compared to module is roughly the same as far as spare parts size and effort. Considering wear on points, I'd give the module the nod here. Yes, the points can be serviced with sandpaper and a matchbook, but I'd say that is more effort over time than the module.
Cap and rotor are bigger for the HEI, but the difference isn't so bad you have to tow a trailer.
Tools for the job are roughly the same. Points needs a flat screwdriver, Phillips (rotor), wrench for the points lead and an Allen to set the point gap, plus the sandpaper and matchbook. HEI requires a flat and phillips, plus a 5/16" nutdriver for the cap, coil, and module. Slight lead for HEI.
In either case, a complete drop-in can be carried, which are roughly similar in size.
If you start getting into aftermarket EI, like MSD or Pertronix, I will agree that troubleshooting and roadside repairs are much less likely.
So overall if you can live with a bigger distributor like the HEI, it offers proven reliability and the same or better servicing. Hotter spark and better wires come along for the ride.

