In my review of Future's Edge last week, one of the compliments I paid was that it was a book I would want to re-read, rather than one of those I would read once, but never really pick up again either in a hurry or ever again. And that led me indirectly to remembering other things I had read, watched, played, listened to once but never again. Similar to my list of sci-fi movies, I'll go through bits of media I've experienced and thought "liked it, wouldn't experience again".
*Alex Rider series (2000-?????): This is an instance that could have gone in my "saw film first" post, as I saw the rather bonkers Stormbreaker film, wondered what Anthony Horowitz's original book was like, and have loathed the film since because...reasons. But ultimately I don't think I'll ever be returning to or re-reading these titles. They have a place for me in my formative reading, and the third novel Skeleton Key is one I recall fondly (also pretty dark, read with caution). But I suffered burnout when I was bought the next three novels after Skeleton Key, when they became...large. By the time I reached the opening fifth of Scopia, I dropped the series and haven't returned. I may well be part burnout, part changing tastes in my habits of reading.
The Roman Mysteries (2001-2009): Caroline Lawrence's series, while principally aimed at children, was a very fun read for me. The Thieves of Ostia was one of my first exposures to a realistic depiction of the Roman world that wasn't extremely grim and bloody. I still remember the second book The Secrets of Vesuvius vividly, contrasting the reunion of a fractured family against the destruction of Pompeii in 79 CE. I finished The Twelve Tasks of Flavia Gemina and started The Enemies of Jupiter before feeling I was growing tired of it. It wasn't just that I was growing up and my fiction tastes were changing, but that getting two books out of order, The Sirens of Surrentum and The Beggar of Volubilis, put me off as this is a series you need to read in order. Again, like the Alex Rider books, it was a combination of factors.
*The Fly (1986): I was FAR too young when I first saw this classic body horror, and the bit that's always stuck in my mind is the final fifteen minutes or so, when the scientist undergoes his final transformation into a disgusting human/fly hybrid, and (dancing around spoilers here) makes a desperate attempt to continue living. Unlike the 1958 film which I've seen multiple times, with both being based on a 1957 short story by George Langelaan, David Cronenberg's film otherwise feels very flat compared to other roughly equivalent sci-fi horror titles like Alien or Predator or even The Thing from what I've heard. It holds little interest for me beyond the incredible practical effects in that final quarter hour, and I have little to no wish to rewatch it in full. I can see the "good" bit on YouTube if I want.
The Big Country (1958): There are very few "Westerns" that I actually like (the Support your Local duology, Hallelujah Trail and select Eastwood titles are those I do). Most Westerns immediately turned me off for reasons I couldn't pinpoint for years. Those reasons are ultimately to do with the racial, gender, sexual and historical propaganda the medium continues to peddle in most instances. Not all, but most. The Big Country feels like the exemplar of what I don't like about the medium, outside most of the John Wayne corpus. It's just so long, and so...generic White America. I know that's harsh, but it's also true. I get the appeal, and there are some standout bits, but generally....eh. If this is supposed to a definitive Western, I'll go find a non-definitive one.
Dishonourable mention goes to Avatar, which against my better judgement I saw more than once and I wish I hadn't because it's...not good. Heck, I wrote a whole book in my Cluster Cycle explicitly as a deconstruction of its premise and structure. Plenty of people seem to love it, but as we're seeing in America, just because people shout about something a lot doesn't mean it's a good thing.