Lesson I've learned during my travels: If you like something, just buy. Don't wait until you come back the next day. Either your plans change or whatever you wanted to buy isn't available anymore.
I should have followed it when I saw a beautiful mermaid made of ceramic at Giardini. I didn't buy it when I first saw it and when I came back the next day it was gone! The store has other pretty collectibles too, certainly a place worth checking out when you are in bellagio.