Interesting article, with a good few paragraphs about Bryan and Mary Talbot towards the end.
BBC (https://www.bbc.co.uk/news/uk-43904727)
Bryan Talbot providing a sketch when he signs makes his books something to treasure.
I read the story as well and the first part was about a guy selling signed Harry Potter books for a few thousand quid (and good luck to him for that) when I get anything singed it's for my personal satisfaction and proof that I met them to say thanks to the author /artist for the joy that they have brought me over the years. What my kids do with my stuff (my prized possessions 😄) is up to them. I have no intention of selling or making profit out of signed items. It shouldn't make an item more valuable a book is still a book and the story is still the same story but in this world money king.
As I said for me it's the moment meeting your Heroes to say thanks👍🏻 that's more important- the signature is just to remind me in later years that I did 🤔
It makes me want to get the Grandville book I'm missing and get the whole set signed (and pictured - only one is at the moment).