Nope....not even if I won the lottery. I'd just buy more old trucks and fix them, and finish fixing the ones I have.
Once these new vehicles are out of warranty, what is it gonna cost to replace all that electronic stuff like the digital dashboard and so forth? We've already seen how the variable valve timing and selective cylinder deactivation holds up....
My friend's '19 Suburban, 1500, 5.3, gets 21mpg in town...but he's already had to replace the transmission on it. He's put a lot of highway miles on it, often towing a loaded trailer. But that's what Suburbans are supposed to be made for....