I’m personally fine with both. A lot of the books I read are stand-alone novels. And sometimes I wish that there could have been more when I’m finished. But, at the same time, sometimes I like those endings to stand-alones because it lets me imagine my own future for the characters.
But I also love series. I find it easier to read series after they are all written. Sometimes it’s just because I don’t like so much time to go by between the installments because I want to know what happens next NOW! 🙂 But sometimes it’s just because I feel like I forget a lot of the details before the next book. That might not be a problem if I didn’t read so many books between those installments.
Nevertheless, I love Harry Potter. I love the Mysterious Benedict Society. I love the Pink Carnation books. I love the Hunger Games. I love Across the Universe (this series just started and I just finished the first book). And I love these just as much as some of my favorite stand-alones: The Count of Monte Cristo, Stardust, All Quiet on the Western Front, and Pride and Prejudice.