Crank Trigged Mopar engines?

Map63Vette said

I noticed just moving to an optical ignition on my old 71 Vette made the timing mark rock steady. Timing it with the old points was a "close enough" setup with a timing light. Put in the optical points eliminator kit and that line is dead on every hit. I get what you're saying about slack in the timing chain and stuff making things somewhat less consistent, but I'm not sure you really need a full crank trigger setup to have a noticeable improvement over points.

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I fully understand it was an improvement from points, but I'm referring to Mopar Electronic ignition with ECU or MSD billet distributor and 6AL and comparable solutions as most of us use.
A MSD kit as mentioned is around 600 bucks. For that money you still don't get the precision over a crank trigger and I swear you won't change weights and springs to adjust timing curve in a couple of minutes. AND you wont get the chance to run vacuum advance as you should on a street driven car.