There is much value in owning a movie, and having a near permanent copy of it, it cannot be altered from its original release. This happens more often than you think. Unfortunately DVD's an Blue Ray disks have a finite life. Alpha Particles degrade them over time. Average life span is 8 to 10 years, in Oklahoma with low levels of radon much longer.
I have a couple of large plastic storage boxes in my warehouse full of DVD's and music CD's . Havent thought much about them in probably a decade
So is there a possibility these things will degrade and be worthless in my lifetime? (im 52) - If so, it almost seems pointless to keep them around taking up space