I am considering buying one too, for years now, one of Karl’s era pieces. Idk which one , but I am thinking the Paris Rome perfume bottle , 2016 filming camera(might be this one), the space rocket , or the yarn roll one. I just need the pandemic to be over! ...and yes the return on investment with the birkin is guaranteed, but the charm are rarity of a Chanel minaudiere from lagerfeld is something one might not be able to find in store for purchase... because once it’s gone, it’s gone. The birkin will always be made, the karl lagerfeld are now collectibles, and some are still at various Chanel boutiques put carefully away, only now we can buy one from the store to put carefully away in our house.