We’re not talking about mass-market movies, the DVDs of which you can pick up at your local hypermarket for just a few $currency_units. We’re talking about the "great movies". These are often only available in rather expensive editions that are rarely discounted substantially, such as the Criterion Collection in the English-speaking world. Not only are these editions expensive in terms of their list price, but in most of the world they are not available locally, and if you wish to order them, you must pay substantial shipping fees and deal with customs hassles.

Also, your 100 DVDs is nothing when the canon of great films in the opinion of most film scholars would easily approach a thousand titles.