Why the facination with integrated amps?


I don’t get it. Is it the manufacturers spotting a trend with the tail wagging the dog or does a significant market segment truly prefer the idea of an integrated?
Pros;
Less space
One less set of IC’s
In theory-one less chassis/case to pay for
Shorter signal paths possible
Can combine transformer/cap function
Cons;
Power supply interference/spuriae
Reduced Flexibility-can’t switch amp or preamp as easily or go to monoblocs
Less resonance control
Long history of lesser performance per measurements and long-term subjective listening
Less resale value if it turns out to be a fad
Less liklihood of an extremely high performing active preamp

I freely admit I am a skeptic. The industry-like so many others-looks for new market niches to move product. 
FWIW, the only integrateds I myself would care to audition would be from Esoteric and Luxman who have a long history of designing no-compromise (low-compromise) high-end integrateds. 

128x128fsonicsmith
I've done both separates and integrated and there wasn't much difference between the two in sound quality. I prefer simplicity at this point and an integrated gives me that. 
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25 years ago I bought a Linn Majik integrated which I loved like the brother I never had.  I have a Cambridge integrated now.   I’m happy with it but will be looking to upgrade next year to a Moon, Naim, or similar.  

I’ve had such great experiences with integrateds. Maybe if my income were in the six figure range, I’d look down on integrateds, but as it is, the integrated amps I’ve owned or auditioned have been absolutely wonderful.    
Based on what others (pro and non-pro reviewers) have said, the Gryphon Diablo 300’s sound quality cannot be matched by separates at this price-point.  So for me it is sound quality and value.  At my budget I struggle to find seperates that have audiophile grade transparency and imaging and yet also have a good bass foundation, presence and with overall musicality driven by drive, timing, attack, decay and dynamics.  I’ve been finding lots of options that achieve the transparency and imaging but seem to fall short in some or all of the other areas.  Another thing is that I find some audiophile grade components to have not the right amount of bloom to certain tones to suit my tastes.  In other words they sound too lean, cold, and dry and not as musically engaging.

I’m completely open to seperates if I can beat the Diablo’s SQ for the same price.

They reason the value is there is you don’t have to factor in the cost of the chassis.  I saw some mfr (could have been McIntosh) say that a major portion of cost of a component is attributed to the chassis.

That said, I still have yet to audition the Gryphon Diablo so I am at this point relying on what (many) others have said.  It sounds like it will tick off all the boxes I’m looking at.  I will be testing it over the next two weeks sometime to decide for myself.