You can have my Laserdiscs when you pry them from my cold, dead hands!
Seriously, we collect media and have for a very, very long time. We have about 800 titles on VHS, close to 550 on Laserdisc, several hundred DVD, and probably 80 Blu-Ray. We also have a smattering of S-VHS stuff that I recorded from broadcast that we occasionally watch. We're somewhere over 1500 titles once redundancies across formats are eliminated from consideration.
As much as I wish that I could simply subscribe to a service to get all of the content that I want, there are too many conditional things going on, like a content provider having content seasonally blocked (recent issues with Grinch come to mind) and having titles withdrawn after awhile. Sorry, I want to be able to watch what I want to watch, when I want to watch it, with no revocation or special conditions upon my watching. Similar reasons are why I'm hesitant to hostile to medialess books and music. I don't want my music collection to go away simply on account of a hard disk drive failure (a'la iTunes) or for my books to go away because the reader croaked, and I don't want a company being able to censor me (like the irony in the withdrawal of 1984 from readers) because of some company-to-company dispute.