From my perspective, it is not that I believe a review is biased because of payment or freebies, but rather a compartmentalisation of the item reviewed into a “price point” where it can stand head and shoulders above other such products at that “price point” (but not be referenced, and ranked against, the best). Where does it stand amongst all the rest?
The other perspective that the newbie (and not so new) audiophile might want from the reviewer (I certainly did) is synergy. Instead of reviewing a single CD player (amongst the reviewers gear) spend more time trying it in different systems and against different known performers (reviewed item compared with Wadia, Wadex, etc.). In the end tell the reader how he would get the most from the item reviewed. That front end with this amplifier with these particular speakers and cables creates a system that compares with some of the very best out there, or these horn speakers and those SETs, those Electrostatics with this particular subwoofer, etc., have always set the bar to me for the most real sounding of that type of system.
In regards to the point made by the OP, that hifi’s direction towards detail has made equipment less musical, some of us, as a result of that, have turned back to vintage equipment that we know it to be musical. Magazines like Sound Practices that offer schematics and build layouts for rolling your own cables, speakers, turntable or amplifier are greatly appreciated by those of us who wished we could afford a $700,000.00 system (or more) but can’t. Using home made and worn but serviceable vintage gear mixed with decent items (like cartridges) has allowed me to build a very “musical” system at a fraction of the cost of the best new off the shelf gear.