I rented the Dutch translated version of Peter Hamiltons "Nights Dawn Trilogy" from my local library. So after reading the first book I of course wanted to read the next book. Guess what? The library doesn't have it. Worse, the publisher has decided not to translate it. So I went ahead and bought it from an English book website who sent me both sequels two days later.
I don't blame my library, they have a nice choice of books including the Sci Fi and fantasy classics. You can go ahead and rent the Dutch versions of Dune, The Wheel of time or Sword of Truth series. But English Sci Fi? There aren't enough people who read that to buy those.
Since I bought that first book I bought a lot more, often works that aren't translated. And it's a lot cheaper than buying Dutch books, the average book I bought costs me about €7.5 which includes a free delivery.