I haven't posted on this thread because I just think 'meh' when I think of CoM, which didn't seem like a terribly sophisticated review.
But I did want to thank the veterans on this forum for providing some interesting insights and background information. I really enjoy reading others' opinions, particularly when they are so knowledgeable, as it helps crystallise my own feelings, which I can't necessarily articulate.
For example, I know I don't like the UU books as much as, say, anything featuring Sam Vimes (my hero!), but it's only since reading these threads that I've realised it's because, for me, they tend to be books telling jokes rather than telling stories. Unseen Academicals is just about the only UU book I have loved, probably because it has a proper story at its core. The wizards are a pretty tiresome bunch, frankly, and Rincewind the most tiresome of all.
Thanks as well for the history lesson - I came to Pratchett very late on in his writing, since I started with The Amazing Maurice, so I read CoM out of chronological order. At that stage, I was just devouring all the books, and then went back and re-read my favourites. I've read CoM only twice, I think, whereas I've lost count of how many times I've read favourites like Small Gods. For me, re-reading any book is like saying hello to an old friend. hearing all the familiar news and occasionally getting to know that friend better. But everybody has friends that just get remembered at Christmas with a card, and I'd put CoM in that category.