Y'all talk about swapping major internal parts like cams and lifters or rebuilding transmissions or transfers cases as if it's as simple as changing a headlight.
You said 'y'all', but in reality, there are two types here (oversimplifying for clarification).
Some think that bone stock OE is just fine, and are content to settle for whatever the roll of the dice landed on.
Some see their vehicle as a hand of cards, and would like to try to improve the cards in their hand.
Before my '02 Tahoe Z71, I owned 3 Caprice 9C1-LT1s, a Fleetwood, and a Caprice wagon.
The pcm tunes significantly improved the 3 9C1-LT1s, and drastically improved the Fleetwood.
The wagon originally came with 2.56. That pcm tune took it from 'sell it?', to 'thanks to the tune, I'll keep it'.
Going from 2.56 to 3.42 - and ALSO adding a limited slip diff - made that wagon a nightmare I inflicted upon anyone who pissed me off, including lighter vehicles that were supposed to be quicker than my wagon.
I sincerely doubt the enthusiasm anyone has for their vehicle if they have not yet gotten the pcm tuned.
(GMT900s are a wee lil bit more involved, but still ...)
3.73 is barely tolerable in my Z71 as is (I've matured SOME), even though I'd need BOTH 4.10 axles (still hunting for bargains ...).
Cannot fathom how anyone would accept a Tahoe or 'bubba with lesser gearing, apart from not understanding what CAFE inflicted upon us all.
Yet for all the above, I still remember my x's 9C1-LT1. Mine had the 9C1-7B3 suspension, hers had the 9C1-8X3.
As the road got worse, she could either catch up to me, or pull away from me, even though my pcm was tuned before hers.
After getting her pcm tuned, I simply had to improve my 7B3 suspension to 8X3 spec.
We broke up, but a few years later, she gave me a ride in her BMW 530i with an M5-spec suspension. It was very sexy ...
Is it so wrong to just want to keep it more or less original and not do a bunch of weird stuff to it?
Yes, it is. Only sort of kidding.
Why not see how far you can expand your definition of 'original' with OE parts from a GMT400 Suburban, or a 2500?
My x would say, 'better tires, brakes, steering, suspension, and in that order'. When I suggested better headlights, she agreed.
Don't go weird, but don't settle either. Start simple and small, and work your way up.