I love crowns as their large size allows you to see so much details and admire the engraver's art. Pistrucci's St George and the dragon design wouldn't work on a small coin like a threepence for example. But high grade pre 1887 examples are very / too expensive for me. Worn examples lose their appeal as the intricate details are gone. I have got some of the common ones in high grade and had to settle for a nice VF+ Victoria VH. If I ever come into money one day (fat chance!), then I would like to get a GVF Charles II crown. When I visit the Ashmolean Museum, I always see and admire the Charles I Oxford crown.
Then I moved on to the smaller halfcrowns, florins, shillings, etc. as they are more affordable. I buy very little these days and don't have a tick list.