Tsundoku (Japanese: 積ん読) is acquiring reading materials but letting them pile up in one’s home without reading them. It is also used to refer to books ready for reading later when they are on a bookshelf. Wikipedia
Acquiring content for acquiring content’s sake. The thrill of the hunt.
Personally, I remember how back in the day I used to love collecting digital content that I never actually consumed. Anime movies, music plugins, workout programs - all Shiny New Things.