if I like a certain cd, or dvd, I'll hoard it- I will hoard copies of it (like I may own 20 or 30 of the same, just in case one breaks)
also, I won't hoard it if it's diffrent in any way
example: if I buy a dvd of the lion king with a picture of a lion on the case, then see the exact same movie with a picture of the pridelands on it, I won't buy it- I know it's exactly the same, I know it's exact same as far as quality, but I will not buy it
since I enjoy breaking my stuff, it comes in handy owning all these copies
I also hoard empty spray bottles- perfumes, bottles of sauce, air freshener, what ever- I just.. I don't really know, do it because I can and it isn't harming anyone