Made it back home, with a suitcase a lot lighter than when I went there (and no additional 13kg package that I sent to the city per postal service).
It went bittersweet for me. I am super happy that people liked my expensive items so much, but I'm a bit salty that I brought so little that I ran out halfway through the con and the second half was a little bit slow.
That being said I'm immediately re-ordering sticker book materials for everyone who didn't get one!!