This is really interesting, particularly since you use the word “obsess”. I meet all of the criteria for OCPD (obsessive compulsive personality disorder — NOT the same thing as OCD), except for “unwilling to throw out broken or worthless objects, even if they have no sentimental value”. In fact, I’m quite the opposite because I try to be as minimalist as I can and am constantly throwing away or donating objects that I don’t need or that don’t meet my quality standards.

I always thought it was strange that I don’t match this one specific symptom of OCPD, but then I started thinking some more, and I realized that I do obsess over objects in a way but not by hoarding them. If I want to order nail clippers for example, I have to spend hours online researching the best pair of nail clippers. I am currently wiring my house for networking, and everything has to be of the highest quality using data center components. Even rented a Fluke network tester. Closet needs repairs? Now I’m learning about drywall and level 5 skim coats. It’s a nightmare because I can’t do anything in a way that I consider half-assing it — I feel compelled to either do nothing at all or go into an extreme level of detail with it.

This constantly causes relationship and work problems, but to a lesser degree than I suppose hoarding stuff would.