Just joining in here. I'm a NYC diser as well.
I can't do any of the dates suggested yet but figured I could offer up suggestions and such.
To answer a previous question the Disney Store in Times Square does often have pins but they seem to come and go. The do not sell a large selection and usually only have a set of NY exclusive ones.
Who else misses the 5th avenue World of Disney? It was so much better than Disney Store.