$15k for bookshelves is a generous budget. My limited exposure to pricey bookshelves is Dynaudio C1 platinums, Contour 20 (non-i), and Heritage Specials. Also Paradigm Persona B. The C1s were pretty amazing, the Contours would have been great if I hadn’t heard the C1s.
I now own a pair of the Heritage Specials. I can heartily recommend them for the sound, but there have been some stunning speakers with interesting woods in this thread. If I ever make it to AXPONA or some other show, I’d like to go the the Joseph Audio room to hear the Pulsar 2 Graphene.
In terms of what else I’d like to hear, a Fritz Carbon 7, and a Watkins Gen IV, but these are less pricey with more of the small manufacturer vibe. I’m interested in trying out speakers that have a certain following of loyalists.