The thing with extended auditioning is that there is a lot of adaptation and not working using short term memory.
Kind of like going to the eye doctor, the changes in the lenses magnification is deliberately quick because one's brain is working in short term memory and very good at knowing what is good for him. Eye doctors don't send you with a lens to test for a week and see how your eye feel.
There are a lot of papers discussing this subject in the Audio Engineering Society. I wish I could post some parts but my petition was denied. If one is really interested in these subjects it is worth joining, but be prepared to read long papers with a lot of math and statistics.
Fun story, a few years back, I had my eye doctor and his dad, also an eye doctor, and I asked the young one if he knew why they change the lenses so fast and he said because he usually want to finish quickly, his father almost gave him a spank and asked if I knew or I was being me curious so he told me that short memory key in finding the right lenses, because the short memory comparison is key.
Many times with my dealer we discussed why he plays one short passage and switch, and he says that after their blind test you should have 2 components you like over the others, and if you are unsure then buy the cheapest.
My dealer also referrers to the long auditioning as a good way to find those things that bother one, like interfaces, switches, esthetics, and anything that is in the functionality domain and see if you like the sound in your home.
All the times I leverage the long term, I only bought something else because something bothered me, I am autistic and some things just don't fit in my brain. Even if the component sounds better, whatever it is distract me from listening.
English as nth language.