While I agree on value, I think the scrap heap is overstated for Savage and Axis. The others, I don't know. Rugerr probably good as well.
Barrels wear out, the most costly gun is not going to do any better than a lower cost one.
Typical hunting use that econo rifle is going to last forever, there is not a whole lot to wear out. 10 rounds a year, 30 year, 300 rounds?
My two Savages probably have 1000 rounds through them each, going fine.
Axis is just a updated design to reduce hand tool and parts counts.
Bolts are prolific, parts will be around forever. Not much else to go wrong, after market triggers if needed.
The stock may get beat up, lots of those after market as well.
They may be beat up in 30 years, still shoot and fine truck guns or bad weather guns you don't have to worry about, but scrap heap I don't think so.