... So Blockbuster isn't a fabulous deal. Sure it's the "same price" as Redbox but only if you keep it those full three days, what if you only want it/need it for one day?
Ya rent the movie - day one.
Something comes up when ya get home, family issue, flat tire, power failuer, whatever - day two.
Ya watch the movie & return it - day three.
Ya add a day to that for special features, if there are any to watch (god, I hate "rental" copies!!!!) - day four (Blockbuster only adds a dollar for this).
That's just one series of events.
Another, ya rent the movie, take it home, watch it, and then leave for work the next day, leavin' the disc at home. Ya get home from work, ya don't feel like goin' back to the store, rough day or whatever, so ya put the movie with your stuff to make sure ya don't forget. And there's your three day rental.
Maybe I'm a bit biased about this, too, since I used to work in a video store, back when the "be kind, rewind" stickers were completely ignored. And I like goin' to Blockbuster stores, just to see what's new I may have missed in theaters, or what went direct to DVD.