But if they have the dragon crown and the armor... What about a sword? I mean is it just each Septim can choose their own expensive sword for personal use? I red in a book that silver is the nicest that you can find new in a blacksmith shop, and higher quality weapons are only found in dungeons and stuff, so maybe it makes sense that thats the best sword readily available.
Or maybe different emporers have different tastes, maybe some like swords, some like blunt weapons, some like magical staves, ETC.
EDIT: Also off topic but didn't one of the Emporers die in Akavir? How did they recover the amulet in that case?