I've enjoyed reading these posts.
I think the difference between hoarding and collecting (as it seems to me) is that collectors are intentional and specific about what they accumulate while hoarders just like to have stuff. If you can still find the record you're looking for in a couple minutes, you're probably okay; if not, it may be time for intervention.
I have I guess somewhere around 3,500 records and a couple thousand CD's, and I like having that variety because I often get the itch to listen to something that hasn't been off the shelf in a few years. And like other posters, the last time I sold a pile, I ended up re-buying several of them and later wishing I had some back because I'm now in a different headspace and would probably enjoy them.
Many records are also artifacts from my life that mean much more to me than their market value; they are tactile reminders of important moments and the persons I used to be.
As for owning multiple copies, I like the comparison; for example, I have at least four copies of Revolver (the 2014 mono reissue, a stereo copy from the blue box, an American mono, and an American stereo), and they all sound different and there are of course the different track listing depending on which side of the pond they were originally intended for. Yet I also look forward to bringing home and listening to the de-mixed remix coming out next month. And on a couple occasions, I have safety copies because finding another copy would be too difficult and the one in my hand is cheap.
And it is also like coin or stamp collecting, but the fact that I can put my object on a turntable and listen to it feels like more than having something just to have it. The thrill of the hunt also has immense appeal and has led me on adventures that were really more meaningful than the records I hauled home.
And when it comes my time to take my dirtnap, my kids can call a record store to come haul it all away.