It also depends how good your brothers are at evaluating your taste in films. But they are probably better than most of your other sources (especially advertising).
Though that part about escaping “responsible” spending doesn’t actually do much, since you could always sell the DVD on eBay and use the money to buy something else. It’s easy to get caught up in sunk cost fallacy and endowment effect though—thinking you should keep it just because you have it. (I guess the resale value is probably a bit less than the original value, so there does exist a narrow region of utility where the movie is worth owning if you already have it but not worth buying yourself. But as I said, this is narrow—on the order of $5---and hence improbable.)
It also depends how good your brothers are at evaluating your taste in films. But they are probably better than most of your other sources (especially advertising).
Though that part about escaping “responsible” spending doesn’t actually do much, since you could always sell the DVD on eBay and use the money to buy something else. It’s easy to get caught up in sunk cost fallacy and endowment effect though—thinking you should keep it just because you have it. (I guess the resale value is probably a bit less than the original value, so there does exist a narrow region of utility where the movie is worth owning if you already have it but not worth buying yourself. But as I said, this is narrow—on the order of $5---and hence improbable.)