My experience is the same as many of you...
If the system/room improve all albums are more interesting Why?
Bad recorded album stay bad recording and well recorded stay good compared to the first....
Yes, but all acoustical cues choices by the the recording engineer become more evident and audible and we are more interested now by the relation between the music and the acoustical cues fabric cloth that reveal it, like a more adjusted piece of cloth on a body....
it is better than more details emerging, it is a new soundscape...
But nothing will change a bad recording in a good one for sure...
The difference is you will no longer listen good recording because the bad one are so bad... All will be interesting and in the best case you will forgot the recording ,bad or good, and enjoy music without be frustrated anymore...
It is my experience...
When i begin my journey few years ago i was picking my listening way more in the well recording category than for the music itself... My system/room was not treated and not controlled at this time... No more now....