The only time I hear new music is when I am in my wife's car (I drive it more than she does) and listen to Sirius, but only the stations I like: Classic Rock (3-4 channels), Real Jazz & Watercolors, Yacht Rock and Bridge, and a few artists with their own channels. If I hear a song I never heard before, especially from an artist I like, I will usually buy the album on an LP, if available new. I seldom buy a used record. Joshua by Miles and One Trick Pony by Paul Simon and Mr. Radio by Linda Ronstadt all enticed me to buy Seven Steps to Heaven, One Trick Pony and Get Closer. New records, but is it new music when you add to the works of an artist you like? It is for me. With jazz, there are so many combinations of players, you really have to know if a particular album is worthwhile. Same with pop and rock with the evolution of bands with different members and stages of their evolution.
The only groups I listen to where I have every album they made in the studio are the Beatles, Steely Dan (& DF) and the Police (only 5 records). The Beatles have a few clunkers (especially on Yellow Submarine and Magical Mystery Tour), Steely Dan's only ones are the one or two Walter sung (RIP) and the Police had a few Andy sung that I make sure to skip. If you count Sting with the Police as one, they drop off the list of groups with every album in my library.
I didn't start listening to jazz until about 20-25 years ago, but am fairly selective in what I like there (mainly bob and blues) and in classic rock. CD player was disconnected about 15 years or so ago, and won't relax listening to my stereo by looking at a computer phone, etc. for access, so it's records only for me.
If I don't like something, I won't listen to it, and if it is worth anything, I either trade it in to a local record store or sell it on eBay. Many "legendary" albums I find unlistenable.
I want to expand my record library beyond the 325 I currently own, but it is not easy for me to find new things I like. I am always asking for recommendations of people's favorites. With the amount of time I listen, I play each record about 3-4 times a year through what I try to arrange at a relatively even distribution of playing time per record, so a record has to earn its keep. I could see the total getting to 4-500, but beyond that, there wouldn't be time to listen to the ones that are my favorites. Those with thousands or records can't possibly listen to them all even once a year, so I would call them collectors or even hoarders. Not me.