One DAC/integrated you could be happy with forever?

@erik_squires   

Yes. If you don’t upsample then you should also be ok. 

" 
One DAC/integrated you could be happy with forever?"
Foolish premise.  The DACs that can make you happy forever are not to be found in integrated.  Schiit remains upgradeable for when a new breakthrough is discovered. Integrated may have a fine amp,  but the DAC will become sorely outdated over time.

I have a Luxman L-30 amp bought when I was a kid, that I could live happily ever after as its residing in its own little cubby hole in a far off land. My Quad Vena has a DAC, and as long as the amp keeps working, it maybe my last......

Esoteric f-05 with dac

Don't go there DAC's are always changing I've had four so far.  Most had more.