Ankh-Morpork never stops being Lankhmar. For that matter, almost no fantasy cities do (unless they're trying to be Gondor). It's a lot harder to find a non-Lankhmar city in the Forgotten Realms than to find a Lankhmar-derived one, for instance. (Also see City of Greyhawk, CISO, Ptolus and countless others.)
while Lankhmar is the quintessential Urban Fantasy setting seen across all fantasy cities, Ankh-Morpork is pretty clearly a parody of Dickensian London, which just happens to also be a squalid, crime ridden, fantastical urban sprawl.
I would argue that the issue with The Colour of Magic and The Light Fantastic isn't that they are bad. It's that they are more visibly parodies of the fantasy genre. Cohen the Barbarian is a clear parody of Conan, complete with snake cultist temples and the like. The Wyrmberg is a direct parody of Anne McCaffery's Dragonriders of Pern. Early Ankh-Morpork references Lankhmar. Vance's Dying Earth magic system is directly parodied in The Light Fantastic. And so on.
The fifth novel, Sourcery, is where things started to shift from parody to world-building. The plot fundamentally changes the way magic works, allowing the wizards at Unseen University to settle down into their dysfunctional roles without having to worry about assassinations and the like. It also brings Vetinari more to the fore as the Patrician.
And while I think that Thud! is Pratchett's greatest work, I have no idea what someone reading it as their first Discworld novel would think of it. I went into it having read every preceding Discworld novel and was fully aware of Vimes' journey up to that point. I'm sure that helped me appreciate the novel in all its wondrous, chaotic glory.
I was disappointed with Vimes' last novel, Snuff. I felt like he'd become a real Gary Sue. Part of the appeal of Vimes is that, despite always being a step behind the villain, he doggedly hangs on and finds a way to win. In Snuff, it felt like he was always one step ahead of the bad guy, so there was no real tension.
Same with Raising Steam. The deep dwarves were rather pitiful compared to the credible threat they'd been in Thud!, and having Vetinari moonlight as a steam train stoker was just plain silly.
I also disliked Unseen Academicals because it felt poorly written. It's been a long time since I read it, but I think it must have been the one he was working on when he was first diagnosed with Alzheimer's and perhaps didn't have the support he had with his later novels.
And then The Shepherd's Crown ... what a limp way to end the series. I'm sure Pratchett's Alzheimer's was really bad by that point, and I'm sure he just wanted to tie everything up in a nice little bow, but after reading this one, I wished he hadn't written it. I feel like it does a disservice to both Granny Weatherwax and the Elf Queen.
I very much agree with your premise here and it is very much seen over the Discworld lifecycle where as you say the first couple of books are a parody of the fantasy genre, built mostly on cliches and running on fantasy logic to package the joke with the setting just being background. They are good parodies in themselves but they are not what the Discworld becomes.
Its not until Guards, Guards and the invention of Samuel Vimes that Pratchett starts taking the Discworld seriously. Samuel Vimes is the first time a person actually responds to the fantasy silliness like a real person living in it - and he does so by arresting it and demanding a permit! Vimes looks at the fantastic and imposes law and social awareness and that is what gives the Discworld Shape.
Its after Guards, Guards that Pratchett stops just doing parody of the fantasy genre and starts doing character driven satire, examining how People* (
to a certain value of "People") respond to the fantasy.
* Most Notably you have Reaper Man and Hogfather in both of which DEATH attempts to understand People and in Hogfather we get DEATHs famous speech "HUMANS NEED FANTASY TO BE HUMAN. TO BE THE PLACE WHERE THE FALLING ANGEL MEETS THE RISING APE."
The rest of the Discworld novels move between being character studies, social satires and philosophical musings where Pratchett got to share his views and discuss how beleifs and prejudice and morality create the world we experience. He was no longer just making jokes about fantasy he was raising a mirror to the round world and getting his readers to think.
The last few books, after his diagnosis are still good, though they a more straight to the point, losing the broader complexity and amusing digressions, no doubt because Pratchett himself was losing time and wanted to get to the point. He was a on a fast track raising steam and the Shepherds Crown is very much his goodbye passing on a legacy
I strongly disagree with these two points. Other than Equal Rites, the first witch book and a crossover with an early version of Unseen University, all of the witch books, including the Tiffany Aching ones, are deeply thoughtful books about gender roles, the meaning of home, death and dying, etc. And if the publishing industry didn't tell readers that some of Pratchett's books were YA, I don't think readers would notice any difference.
The argument for not jumping around series is that there is continuity through the books. It's not strictly speaking necessary to have read other books in the series before you read, say, Making Money, but you'll get both fun Easter eggs and some extra layers of meaning that are, IMO, kind of necessary to understand one of Pratchett's best books. (What's the deal with the angel references? Does the Watch really have a werewolf on its staff? What's the deal with golems?)
If you haven't read any Discworld, I would say to at least glance at The Colour of Magic. The people who dislike it are loud and I suspect over-represented in online discussions of the series.
fair enough. I do love the Witches series and everything they do, but I still beleive they got much better over time. Tifanny Aching and Amazing Maurice are YA, I like YA literature, it can be intelligent and thoughtful too