Some people (like me) prefer older movies. It has actually saved me money a few times. I like strange odd horror movies and usually if I want to see one I'll have to buy the dvd because there's no other way to see it. I've found a few of them on Netflix, watched it and it saved me from buying the dvd.
I rarely have to wait for a dvd as I really don't like most of the crap put out nowadays. If I really do want to see a newer movie that's not on Netflix we have a couple red boxes right down the street.
Anything else you need straightened out on, juts let me know.