The only Potter book I currently own is a U.K. copy of Philosopher’s Stone that I bought a few years ago in London.
I donated my original Potter books to the library when I moved in 2012, I had to be brutal in thinning books and o knew at least the library could put them into their collection or sell as used books.
Are the illustrated ones worth the money? Don’t really need answer fast, I really don’t need any more physical hard copy books, I could just get them on kindle.