I didn't watch the whole thing, but my takeaway from the first 20 minutes of that show was that you need to have a healthy (vs. unhealthy) relationship with "stuff". The two guys who wrote the book clearly both had unhealthy relations with stuff, as do a lot of other people (a lot of the people on Hoarder: Buried Alive start hoarding because they are looking to fill some kind of empty void in their life, usually after the loss of a spouse).
Even those of use who do have healthy relations with stuff often have too much because we just take it for granted. We buy something, use it for a while, then for whatever reason stop using it but never get rid of it. I'm all in favor of getting rid of excess stuff you don't need or use, especially if it gives you more space to enjoy what you do love, but I don't think that's necessarily the point. One of the guys in the show said that he doesn't have to justify how much (little) he has to anyone else and I think that's true for everyone. Keep what you need and use and like but don't look to material things in and of themselves to bring you happiness.
Even those of use who do have healthy relations with stuff often have too much because we just take it for granted. We buy something, use it for a while, then for whatever reason stop using it but never get rid of it. I'm all in favor of getting rid of excess stuff you don't need or use, especially if it gives you more space to enjoy what you do love, but I don't think that's necessarily the point. One of the guys in the show said that he doesn't have to justify how much (little) he has to anyone else and I think that's true for everyone. Keep what you need and use and like but don't look to material things in and of themselves to bring you happiness.