I also listen to music as often as I have the occasion to (3 - 4 albums a day, at weekends even more). But differently to Noni, COT or Ned Flanders123 I do not listen to so many bands and albums. I own around 1,200 albums. But there are only around 500 albums, I listen to regularly more or less and around 200, I know every note and line of. If I get a new album, I usually keep listening to it 10 or 15 times in a row until I know it quite well. I wonder if Noni, COT or Ned can do the same considering the huge amount of albums, they have. I guess there are different approaches to listening to music. One is, to get to know as much as possible, the other one is to really get into, what you have.
I don't mean to criticize, it is just an observation.
I'm in the same camp as you. I have around 300 albums, an not enough time to listen as I'd like, but I don't really feel the need to own more than I have the chance to hear.