Because no woman, dolls included, can have enough of shoes!
Here is my gal, Suzuran in midst of all the SD/MSD/YOSD sized array of shoes and boots. Remind me again just why do I have to get shoes for all 4 different dolls of mine and they cant even share their footwear.
I myself is totally addicted to buying shoes every now and I have since been inflicted with an ongoing obession to buy shoes for my dolls as well, I guess I cant possibly have them settle for any lesser since I am such a shoes lover. Sometimes I do wish that their shoes come in human sizes too *sigh* I can only wish. But at least I am comforted by the fact that my own shoes collection still beat the dolls hand down!