Bherder,
I can't agree with you more in your comments, they are great points. The big problem with firewall connectors is that "PETA"(People for the Ethical Treatment of Amperage) is always protesting them. I know, really lame joke!
Yup ... hee hee

Well, like I say, once you've eliminated that gawd-awful 'everything-going-through-the-bulk-head-to-the-amp-gauge' mess, you've won 1/2 the battle.
I have no idea
WHY The Dodge Boys kept using this horribly engineered and out-dated cluster-f**k, but they did. Stubbornness I guess. Or maybe, they had too much $$ invested in gauges/harnesses already .. who knows?
Electrons pile up at those firewall brass connector terminals and create heat. Brass can carry only carry 12-16% of the amperage as similar sized copper. Couple that with 30 to 40 years of corrosion and you get what I see quite often--melted plastic firewall connectors.
Brass, is not all
that bad (I've seen much worse) ... After all, what is brass? Copper and nickel. My guess is that brass was used because of it's inherent strength (Copper is, a pretty soft metal, comparatively speaking) ...
It's all a matter of compromise in the long run I guess.
http://www.keytometals.com/Article79.htm
I think the key is, (If keeping the factory connections) is to 'relay' the high-amp circuits. Headlights.. Blower motor ... wiper motor .... AC if so equipped (Of course, doing away with the amp gauge) ... After you're using factory circuits to do nothing more than operate a relay(s) ... An amp or less... the rest of the battle is won. The rest of the stuff (Light bulbs, gauges, etc mainly) should be easily handled by what The Dodge Boys gave you...
And I agree with GHS ... I like being able to disconnect stuff between the cab and the engine compartment. No particular reason, I just like that 'option' to be there
I think that the plastic housing holding up 20 to 30 wires all those years can't be good thing either. They must be very tired.
Well, on the other hand, the plastic is nothing more than a 'housing' for the connectors. Yeah, I've seen my share of melted ones (99% of the time because of Infamous Amp Wire, OR because some knuckle-head who hadn't a CLUE as to what they were doing, heated/melted another circuit.)
Actually I have absolutley nothing against making things 'better' ... (I
think I've written enough electrical upgrade posts to prove that ..

) ... I just don't think that the factory connectors ... with proper care and mods .. Are at all a 'bad' thing... I
DO agree with you that anytime you can eliminate any sort of 'plug-in' type of connection, is always going to be a stronger electrical connection through whatever circuit and a 'good' thing ....
I dunno... Maybe I just can't, in my own mind, justify spending $500 for a wiring harness. Either that, or I'm in THE WRONG business!
