Does anybody know what is the function of "Golden Moogle Doll"?? Is it just a doll only or what? What make it worth of 100 killing? Dont' say it is only to make more gil .

And what is best between custumize my weapon or getting ultima weapon? I'm already in Chapter 10, is it too late to get Ultima Weapon?(considering 250000 gil total to customized it) Or you have any other suggestion?