it's easy. I have watched every vcr tape, dvd or blu ray I own numerous times. It's not that hard or a chore as you make it out to be.
Right now I am rewatching a mini series from 1983 and it's at least the 4th time I have done so since I've own it. So that alone makes it worth the money I spent on it too.
And all those obstacles you wrote are with digital too. Unless you are saying you don't buy any movie at all, which if you are, that's fair enough too.
I just don't see the big deal about rewatching a film