I stash oil because I am cheap.
If I change the oil early, that defeats the purpose of buying it cheap.
Heck, my last change in my wifes car was with some Pennzoil Platinum made in 2010/2011 (purchased is 2013 or so). I think I paid $1/qt for that.
The Valvoline NextGen in my truck is from 2013 (purchased in 2014/15) was free after rebate (I think I actually made money off it).
As for what my vehicles like, I don't know, they don't talk to me and I have not done any UOA's on them.
I do know that my truck uses about 1 qt every 1500 miles with the NextGen 5w-20 (I top up with NextGen 5w-30). I have 1 more change left with the NextGen before trying something different, I think it will be some 5w-20 Castrol GTX Syn Blend ($1/qt), so will see if use is any different.
For the wife's car, the first 25,000 miles was whatever the Toyota dealer put in it (regular 5w-20 Toyota oil and filter per the receipt), the last 2 changes were with the "old" 5w-20 PP (and the next 3 will also be the same oil) with no oil usage in 5000 miles.